diff -u -r1.4 -r1.5
--- ExamplePFA.java	18 Oct 2005 17:50:53 -0000	1.4
+++ ExamplePFA.java	19 Oct 2005 19:43:09 -0000	1.5
@@ -12,6 +12,12 @@

 import mst.MinimumHitToHitDistance;
 import mst.Metrics;
 

+/**
+ * An example PFA using the structual algorithm.
+ *
+ * @version $Id: ExamplePFA.java,v 1.5 2005/10/19 19:43:09 mcharles Exp $
+ */
+

 public class ExamplePFA extends Driver
 {
     // Special treatment for likelihood quantities that need per-event info

@@ -35,8 +41,9 @@

 	add(mstDriverEcal);
 	add(mstDriverHcal);
 

-	// Find MIPs within clusters. Have to do this before merge
-	// because the MIP-finder is layer-based...

+	// Find MIPs within clusters. Have to do this before merging ECAL and HCAL
+	// because the MIP-finder is layer-based -- we don't want to confuse layer n
+	// of the ECAL with layer n of the HCAL.

 	TrackSegmentFinder findTracksEcal = new TrackSegmentFinder("MSTCluster EMCal", "Track segments EMCal");
 	TrackSegmentFinder findTracksHcal = new TrackSegmentFinder("MSTCluster HCal", "Track segments HCal");
 	add(findTracksEcal);