diff -u -r1.1 -r1.2
--- HPSTwoTrackFilterDriver.java	10 Jan 2013 18:11:46 -0000	1.1
+++ HPSTwoTrackFilterDriver.java	15 Jan 2013 18:55:17 -0000	1.2
@@ -31,6 +31,11 @@

         if(!event.hasCollection(Track.class, trackCollectionName)) {
             throw new RuntimeException("Error, event doesn't have the track collection");
         }

+        
+        if(this.debug) {
+            System.out.printf("%s: %d tracks in this event\n",this.getClass().getSimpleName(),event.get(Track.class, trackCollectionName).size());
+        }
+        

         if (event.get(Track.class, trackCollectionName).size()>1) {
             try {
                 writer.write(event);

diff -u -r1.1 -r1.2
--- HPSLCIOFilterDriver.java	10 Jan 2013 18:11:17 -0000	1.1
+++ HPSLCIOFilterDriver.java	15 Jan 2013 18:55:17 -0000	1.2
@@ -16,7 +16,7 @@

 public abstract class HPSLCIOFilterDriver extends Driver {
     protected String outputFile;
     protected LCIOWriter writer;

-   

+    protected boolean debug = false;

     
     public HPSLCIOFilterDriver() {        
     }

@@ -25,6 +25,10 @@

         this.outputFile = output;
     }
     

+    public void setDebug(boolean debug) {
+        this.debug = debug;
+    }
+    

     abstract boolean eventFilter(EventHeader event);
 
     private void setupWriter() {

diff -u -r1.1 -r1.2
--- LCIOEventFilter.lcsim	10 Jan 2013 18:12:05 -0000	1.1
+++ LCIOEventFilter.lcsim	15 Jan 2013 18:55:17 -0000	1.2
@@ -22,6 +22,7 @@

     <drivers>
         <driver name="TwoTrackFilter" 
                 type="org.lcsim.hps.util.HPSTwoTrackFilterDriver">

+                <debug>false</debug>

                 <outputFilePath>${outFile}</outputFilePath>
 	</driver>
         <driver name="EventMarkerDriver"

@@ -29,7 +30,8 @@

             <eventInterval>1000</eventInterval>
         </driver>        
         <driver name="HPSCalibrationDriver" type="org.lcsim.hps.monitoring.HPSCalibrationDriver">

-                <runNumber>1351</runNumber>

+                <runNumber>-10</runNumber>
+                <!-- <runNumber>1351</runNumber> -->

         </driver>
         <driver name="RawTrackerHitSensorSetup" type="org.lcsim.recon.tracking.digitization.sisim.config.RawTrackerHitSensorSetup"/>
         <driver name="RawTrackerHitFitterDriver" type="org.lcsim.hps.recon.tracking.HPSRawTrackerHitFitterDriver">