diff --git a/src/edu/umich/andykong/ptmshepherd/PTMShepherd.java b/src/edu/umich/andykong/ptmshepherd/PTMShepherd.java
index 2dbf4bc..a3eb0ed 100644
--- a/src/edu/umich/andykong/ptmshepherd/PTMShepherd.java
+++ b/src/edu/umich/andykong/ptmshepherd/PTMShepherd.java
@@ -237,7 +237,7 @@ public static void init(String [] args) throws Exception {
 		params.put("iontype_y", "1");
 		params.put("iontype_z", "0");
 		
-		params.put("iterloc_mode", "true");
+		params.put("iterloc_mode", "false");
 		params.put("iterloc_convergeCriterion", "0.01");
 		params.put("iterloc_maxEpoch", "100"); // Todo hangs when set to 0