diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigMultiSingles.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigMultiSingles.lcsim
index 1d8e049b1..cc3f13429 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigMultiSingles.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigMultiSingles.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with single2 and single3 triggers for 2019 MC.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigPulse.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigPulse.lcsim
index 732eb70e8..30b257bad 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigPulse.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigPulse.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with random trigger for 2019 MC.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles.lcsim
index 3376737d5..30911aaf3 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with single3 trigger for 2019 MC.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles2.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles2.lcsim
index 4cfdc9bfe..c0b9c3752 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles2.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSingles2.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with single2 trigger for 2019 MC.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSinglesWithPulserDataMerging.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSinglesWithPulserDataMerging.lcsim
index f1afda715..86e20a7bc 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSinglesWithPulserDataMerging.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2019TrigSinglesWithPulserDataMerging.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with 2019 single2 and single3 triggers for 2019 MC with pulser data as background.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMollerWithPulserDataMerging.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMollerWithPulserDataMerging.lcsim
index 8cfce9118..7194645d1 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMollerWithPulserDataMerging.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMollerWithPulserDataMerging.lcsim
@@ -317,7 +317,7 @@
 
 	    <!--Factor for gain conversion from self-defined unit/ADC to
 	    MeV/ADC. -->            
-	    <factorGainConversion>0.000833333</factorGainConversion>
+	    <factorGainConversion>0.0008125</factorGainConversion>
             
             <!--
                 The digitization driver produces as output a list of ADC values
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMultiSingles.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMultiSingles.lcsim
index d9f25e6b4..fb113298a 100644
--- a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMultiSingles.lcsim
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigMultiSingles.lcsim
@@ -2,7 +2,7 @@
 <lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
        xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
     <!-- 
-      @Readout steering file with pairs trigger for 2019 MC.
+      @Readout steering file with single2 and single3 triggers for 2021 MC.
       @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
     -->
     <execute>
diff --git a/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim
new file mode 100644
index 000000000..c5942bcf4
--- /dev/null
+++ b/steering-files/src/main/resources/org/hps/steering/readout/PhysicsRun2021TrigSinglesWithPulserDataMerging.lcsim
@@ -0,0 +1,441 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<lcsim xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
+       xs:noNamespaceSchemaLocation="http://www.lcsim.org/schemas/lcsim/1.0/lcsim.xsd">
+    <!-- 
+      @Readout steering file with single2 and single3 triggers for 2021 MC with pulser data as background.
+      @author <a href="mailto:caot@jlab.org">Tongtong Cao</a>
+    -->
+    <execute>
+        <!-- Parameters in the DAQ configuration are applied by the
+	     readout system -->
+        <driver name="DAQConfig2019"/>
+
+        <!-- SLiC Data Input Drivers -->
+        <driver name="EcalHitsInputDriver"/>
+        <driver name="MCParticleInputDriver"/>
+        <driver name="HodoscopeHitsOutputDriver"/>
+        <driver name="TrackerHitsSVTOutputDriver"/>
+
+        <!-- Pulser Data Input Drivers -->
+        <driver name="EcalRawHitsInputDriver"/>
+        <driver name="HodoscopeRawHitsInputDriver"/>
+        <driver name="RawTrackerHitSensorSetup"/>  
+        <driver name="SvtRawHitsInputDriver"/>
+
+        <!-- Hodoscope Readout Simulation Drivers -->
+        <driver name="HodoscopePreprocessingDriver"/>
+        <driver name="HodoscopeDigitizationWithPulserDataMergingDriver"/>
+        <driver name="HodoscopeRawConverterDriver"/>
+	<driver name="HodoscopePatternDriver"/>
+
+        <!-- Calorimeter Readout Simulation Drivers -->
+        <driver name="EcalDigitizationWithPulserDataMergingDriver"/>  
+        <driver name="EcalRawConverterDriver"/>
+        <driver name="GTPReadoutDriver"/>      
+
+       
+        <!-- Trigger Simulation -->
+        <driver name="SinglesTrigger2"/>
+        <driver name="SinglesTrigger3"/>
+
+	<driver name="SvtDigitizationWithPulserDataMergingDriver"/>
+
+         <!-- LCIO Output and Data Management Driver -->
+        <driver name="ReadoutManagerDriver"/>
+
+        <driver name="CleanupDriver" />
+    </execute> 
+    
+    <drivers>
+        <!--
+	     The driver handles the DAQ configuration
+	-->
+        <driver name="DAQConfig2019" type="org.hps.record.daqconfig2019.DAQConfig2019Driver">
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>      
+        </driver>
+
+        <!--
+             Truth handler drivers load truth information from the input SLIC file
+             and pass them off to the readout data manager, where they may be
+             accessed by other readout drivers.
+             
+             It is required that these drivers specify the name of the collection
+             that they manage, and be of the appropriate handler type that matches
+             the object type of the collection. They may also, optionally, specify
+             whether the truth collection managed by the driver should be output
+             into the readout file, and if so, over what time range.
+             
+             By default, SLIC truth data is not written out. If no output window is
+             specified, and truth is written, the output window will be derived
+             from the readout window and trigger offset parameters of the readout
+             data manager.
+             
+             In general, calorimeter truth information (and the related particles
+             data) are best handled by including truth readout in the calorimeter
+             simulation. This will automatically include all calorimeter truth hits
+             and related MC particles in the readout file.
+          -->
+        <driver name="EcalHitsInputDriver" type="org.hps.readout.SimCalorimeterHitReadoutDriver">
+            <collectionName>EcalHits</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>8.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+        
+        <driver name="MCParticleInputDriver" type="org.hps.readout.MCParticleReadoutDriver">
+            <collectionName>MCParticle</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>32.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+
+        <driver name="HodoscopeHitsOutputDriver" type="org.hps.readout.SimTrackerHitReadoutDriver">
+            <collectionName>HodoscopeHits</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>8.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+        
+        <driver name="TrackerHitsSVTOutputDriver" type="org.hps.readout.svt.SVTTrackerHitReadoutDriver">
+            <collectionName>TrackerHits</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>8.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+        
+
+        <driver name="EcalRawHitsInputDriver" type="org.hps.digi.RawTrackerHitReadoutDriver">
+            <collectionName>EcalReadoutHits</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>32.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+
+        <driver name="HodoscopeRawHitsInputDriver" type="org.hps.digi.RawTrackerHitReadoutDriver">
+            <collectionName>HodoReadoutHits</collectionName>
+            
+            <!-- Units of ns. -->
+            <readoutWindowBefore>32.0</readoutWindowBefore>
+            <readoutWindowAfter>32.0</readoutWindowAfter>
+            <persistent>false</persistent>
+        </driver>
+
+
+         <driver name="RawTrackerHitSensorSetup" type="org.lcsim.recon.tracking.digitization.sisim.config.RawTrackerHitSensorSetup">
+            <readoutCollections>SVTRawTrackerHits</readoutCollections>
+        </driver>
+       
+
+<!--        <driver name="SvtRawHitsInputDriver" type="org.hps.digi.RawTrackerHitReadoutDriver"> --> 
+        <driver name="SvtRawHitsInputDriver" type="org.hps.digi.SvtPulserReadoutDriver">
+          <collectionName>SVTRawTrackerHits</collectionName>            
+          <!-- Units of ns. -->
+          <readoutWindowBefore>32.0</readoutWindowBefore>
+          <readoutWindowAfter>32.0</readoutWindowAfter>
+          <persistent>false</persistent>
+        </driver>
+
+       <!--
+             The calorimeter readout driver handles conversion of SLIC truth
+             hits into voltage pulses and ultimately into ADC counts every 4 ns
+             sample. These samples are then integrated and output as hits which
+             are used internally by the readout simulation in the collection
+             set by variable "outputHitCollectionName".
+             
+             When a trigger occurs, the ADC buffer is used to generate readout
+             hits. The exact form these take differs based on the mode that is
+             simulated, but they are always output to the collection defined by
+             variable "readoutHitCollectionName".
+             
+             If truth information is enabled, then a set of truth relations are
+             output as well that link each readout hit to all of the truth hits
+             that are associated with it. Additionally, all truth hits as well
+             as the particle (and its parents) that generated that truth hit
+             are written out to ensure that they are available post-readout.
+             The additional truth information is automatically written to the
+             same collection name as the input truth data. If a truth handler
+             driver also outputs data into this collection, the two will merge.
+          -->
+        <driver name="EcalDigitizationWithPulserDataMergingDriver" type="org.hps.digi.EcalDigitizationWithPulserDataMergingReadoutDriver">
+            <!-- LCIO Collection Names -->
+            <inputHitCollectionName>EcalHits</inputHitCollectionName>
+            <inputPulserDataCollectionName>PulserDataEcalReadoutHits</inputPulserDataCollectionName>
+            <outputHitCollectionName>EcalRawHits</outputHitCollectionName>
+            <readoutHitCollectionName>EcalReadoutHits</readoutHitCollectionName>
+            <truthRelationsCollectionName>EcalTruthRelations</truthRelationsCollectionName>
+            <triggerPathTruthRelationsCollectionName>TriggerPathTruthRelations</triggerPathTruthRelationsCollectionName>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>   
+            
+            <!-- Driver Parameters -->
+            <mode>1</mode>                                  <!-- Allowed values: 1, 3, or 7. -->
+            <addNoise>true</addNoise>
+            
+            <!-- 
+                 Readout offset is not the same as the old system - it measures
+                 amount of samples that are included before the trigger time in
+                 the ADC readout window. The old version can be converted by
+                 selecting a readout window equal to (readoutLatency - 64).
+              -->
+            <readoutOffset>10</readoutOffset>               <!-- Units of 4 ns clock-cycles. -->
+            
+            <!--
+                The digitization driver produces as output a list of ADC values
+                within a specified window, in emulation of Mode-1 data. This
+                removes the truth information that is otherwise present in the
+                original SLiC output. Setting this option to true creates new
+                LCRelation objects that link the ADC list to the truth hits that
+                created it and stores this in readout. For production running,
+                this should generally be off to save space. Truth hits will be
+                included in readout automatically - the truth hit driver above
+                does not need to be persistent.
+            -->
+            <writeTruth>true</writeTruth>
+            
+            <!--
+                As above, except that truth relations are persisted for the
+                readout hits that are seen by the clusterer and trigger. This
+                is useful if some analysis needs to be performed at the readout
+                level. Otherwise, this should be left off.
+            -->
+            <writeTriggerPathTruth>false</writeTriggerPathTruth>
+        </driver>
+
+        <!--
+             The raw converter handles the conversion of simulated ADC pulses from
+             the calorimeter readout driver into proper hits that can be used for
+             triggering.
+             
+             Note that it allows for these hits to be written to LCIO if desired,
+             though by default they are not persisted. This is generally unneeded,
+             since the clusterer will automatically output the hits which appear in
+             GTP clusters if cluster output is enabled.
+          -->
+        <driver name="EcalRawConverterDriver" type="org.hps.readout.ecal.updated.EcalRawConverterReadoutDriver">
+		    <!--
+				Define the LCIO collection names. The input collection should
+				come from the digitization driver.
+			-->
+			<inputCollectionName>EcalRawHits</inputCollectionName>
+			<outputCollectionName>EcalCorrectedHits</outputCollectionName>
+
+			<daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>               		   
+            
+            <!--
+                Outputs all the trigger-level hits within the readout window.
+                This is not generally necessary outside of specialized
+                circumstances. Note that all readout hits associated with GTP
+                clusters will automatically be included if GTP clusters are
+                persisted.
+            -->
+            <persistent>false</persistent>
+        </driver>
+        
+        <!--
+             The GTP clusterer creates clusters from converted calorimeter hits
+             for use in the trigger. It take two parametesr: the clustering
+             window, which specifies the number of clock-cycles in which a seed
+             hit candidate must be a spatiotemporal maximum, and seed energy
+             threshold, which specifies how much energy a seed hit candidate
+             must have in order to be used.
+             
+             The GTP clusterer is able to be persisted into LCIO. If persisted,
+             it will output all of the clusters in the readout window range
+             (either specified manually as with the truth drivers or using the
+             default readout window and trigger offset of the manager). It will
+             also output all of the hits contained in each cluster into the
+             output file as well.
+          -->
+        <driver name="GTPReadoutDriver" type="org.hps.readout.ecal.updated.GTPClusterReadoutDriver">
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>             
+            
+            <!--
+                Specifies whether GTP clusters should be persisted in the
+                output LCIO data. This should generally be false for production
+                running to save space, but can be useful for some analyses, as
+                the exact trigger-time clusters are not otherwise recoverable
+                after readout.
+            -->
+            <persistent>true</persistent>
+        </driver>
+
+        <!--
+            The hodoscope preprocessing driver is responsible for taking SLiC
+            truth hits and converting them to a form usable by the simulation.
+            Truth hits are of the type SimTrackerHit and need to be converted
+            to the type SimCalorimeterHit. Additionally, SLiC is not able to
+            produce hits on multiple channels from the same scintillator. Some
+            scintillators do have multiple channels in the actual detector. As
+            such, it is necessary to split the energies of hits occurring on
+            scintillators with mutliple channels across the relevant channels.
+            This is handled by this driver.
+        -->
+        <driver name="HodoscopePreprocessingDriver" type="org.hps.readout.hodoscope.HodoscopePreprocessingDriver">
+            <truthHitCollectionName>HodoscopeHits</truthHitCollectionName>
+            <outputHitCollectionName>HodoscopePreprocessedHits</outputHitCollectionName>
+
+            <persistent>true</persistent>
+        </driver>
+
+
+        <!--
+             The hodoscope digitization driver works identically to the
+             calorimeter digitization driver, except for the hodoscope.
+          -->
+        <driver name="HodoscopeDigitizationWithPulserDataMergingDriver" type="org.hps.digi.HodoscopeDigitizationWithPulserDataMergingReadoutDriver">
+            <!-- LCIO Collection Names -->
+            <inputHitCollectionName>HodoscopePreprocessedHits</inputHitCollectionName>
+            <inputPulserDataCollectionName>PulserDataHodoReadoutHits</inputPulserDataCollectionName>
+            <outputHitCollectionName>HodoscopeRawHits</outputHitCollectionName>
+            <readoutHitCollectionName>HodoscopeReadoutHits</readoutHitCollectionName>
+            <truthRelationsCollectionName>HodoscopeTruthRelations</truthRelationsCollectionName>
+            <triggerPathTruthRelationsCollectionName>HodoscopeTriggerPathTruthRelations</triggerPathTruthRelationsCollectionName>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>   
+            
+            <!-- Driver Parameters -->
+            <mode>1</mode>                                  <!-- Allowed values: 1, 3, or 7. -->
+            <addNoise>false</addNoise>
+            
+            <!-- 
+                 Readout offset is not the same as the old system - it measures
+                 amount of samples that are included before the trigger time in
+                 the ADC readout window. The old version can be converted by
+                 selecting a readout window equal to (readoutLatency - 64).
+              -->
+            <readoutOffset>10</readoutOffset>               <!-- Units of 4 ns clock-cycles. -->
+
+	    <!--Factor for gain conversion from self-defined unit/ADC to
+	    MeV/ADC. -->            
+	    <factorGainConversion>0.0008125</factorGainConversion>
+            
+            <!--
+                The digitization driver produces as output a list of ADC values
+                within a specified window, in emulation of Mode-1 data. This
+                removes the truth information that is otherwise present in the
+                original SLiC output. Setting this option to true creates new
+                LCRelation objects that link the ADC list to the truth hits that
+                created it and stores this in readout. For production running,
+                this should generally be off to save space. Truth hits will be
+                included in readout automatically - the truth hit driver above
+                does not need to be persistent.
+            -->
+            <writeTruth>false</writeTruth>
+            
+            <!--
+                As above, except that truth relations are persisted for the
+                readout hits that are seen by the clusterer and trigger. This
+                is useful if some analysis needs to be performed at the readout
+                level. Otherwise, this should be left off.
+            -->
+            <writeTriggerPathTruth>false</writeTriggerPathTruth>
+        </driver>
+
+        <!--
+             The hodoscope raw converter functions as per the calorimeter raw
+             converter driver.
+          -->
+        <driver name="HodoscopeRawConverterDriver" type="org.hps.readout.hodoscope.HodoscopeRawConverterReadoutDriver">
+		    <!--
+				Define the LCIO collection names. The input collection should
+				come from the digitization driver.
+			-->
+			<inputCollectionName>HodoscopeRawHits</inputCollectionName>
+			<outputCollectionName>HodoscopeCorrectedHits</outputCollectionName>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>   		
+
+	    <!--  
+	    Factor of unit conversion for returned value of the method
+	    AbstractBaseRawConverter:: adcToEnergy(). For hodo, unit of hit energy is
+	    self-defined for hodo FADC hits.  Conversion from
+	    self-defined-unit/ADC to MeV/ADC for true hits is taken
+	    into account in HodoscopeDigitizationReadoutDriver  by
+	    factorGainConversion. Here, factor = 1 
+	    -->
+	    <factorUnitConversion>1</factorUnitConversion>
+            <!--
+                Outputs all the trigger-level hits within the readout window.
+                This is not generally necessary outside of specialized
+                circumstances. Note that all readout hits associated with GTP
+                clusters will automatically be included if GTP clusters are
+                persisted.
+            -->
+            <persistent>false</persistent>
+        </driver>
+
+        <!--
+	    HodoscopePatternDriver produces hodoscope pattern list for
+	    each hodoscope layer to be applied in Ecal-hodo matching
+	    in trigger.
+	    Order of pattern list: top layer 1, top layer 2, bot layer
+	    1, bot layer 2
+          -->
+        <driver name="HodoscopePatternDriver" type="org.hps.readout.hodoscope.HodoscopePatternReadoutDriver">
+		    <!--
+				Define the LCIO collection names. The input collection should
+				come from the digitization driver.
+			-->
+			<inputCollectionName>HodoscopeCorrectedHits</inputCollectionName>
+			<outputCollectionName>HodoscopePatterns</outputCollectionName>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>   
+
+			<persistent>false</persistent>
+	</driver>  
+
+        
+        <driver name="SinglesTrigger3" type="org.hps.readout.trigger2019.SinglesTrigger2019ReadoutDriver">
+            <inputCollectionNameEcal>EcalClustersGTP</inputCollectionNameEcal>
+
+            <inputCollectionNameHodo>HodoscopePatterns</inputCollectionNameHodo>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>   
+            
+            <!-- Units of 2 ns beam bunches. -->
+            <deadTime>15</deadTime>            
+
+        </driver>
+
+        <driver name="SinglesTrigger2" type="org.hps.readout.trigger2019.SinglesTrigger2019ReadoutDriver">
+            <inputCollectionNameEcal>EcalClustersGTP</inputCollectionNameEcal>
+
+            <inputCollectionNameHodo>HodoscopePatterns</inputCollectionNameHodo>
+
+            <triggerType>singles2</triggerType>
+
+            <daqConfigurationAppliedintoReadout>true</daqConfigurationAppliedintoReadout>
+
+            <!-- Units of 2 ns beam bunches. -->
+            <deadTime>15</deadTime>
+
+        </driver>
+                    
+
+        <driver name="SvtDigitizationWithPulserDataMergingDriver" type="org.hps.digi.SvtDigitizationWithPulserDataMergingReadoutDriver">
+          <pulserDataCollectionName>PulserDataSVTRawTrackerHits</pulserDataCollectionName>
+            <enablePileupCut>false</enablePileupCut>
+            <useTimingConditions>true</useTimingConditions>
+            <addNoise>true</addNoise>
+        </driver>
+
+
+        <driver name="ReadoutManagerDriver" type="org.hps.readout.ReadoutDataManager">
+            <readoutWindow>200</readoutWindow>
+            <outputFile>${outputFile}.slcio</outputFile>
+        </driver>
+      
+        <driver name="CleanupDriver" type="org.lcsim.recon.tracking.digitization.sisim.config.ReadoutCleanupDriver" />
+    </drivers>
+</lcsim>