diff -u -r1.5 -r1.6
--- OverlayDriver.java	29 Apr 2011 16:23:37 -0000	1.5
+++ OverlayDriver.java	29 Apr 2011 17:11:15 -0000	1.6
@@ -510,7 +510,6 @@

 			System.err.println("Unable to move collection: "+collectionName+" of type "+collectionType);
 			return null;
 		}

-		if (this.getHistogramLevel() > HLEVEL_NORMAL) System.out.println("Moved collection: "+collectionName+" of type "+collectionType+" to "+time+"ns");

 		return movedCollection;
 	}
 	

@@ -654,6 +653,7 @@

 		String collectionName = collection.getName();
 		Class collectionType = collection.getType();
 		Class overlayCollectionType = overlayCollection.getType();

+		if (this.getHistogramLevel() > HLEVEL_NORMAL) System.out.println("Merging collection: "+collectionName+" of type "+collectionType+".");

 		if (!collectionType.equals(overlayCollectionType)) {
 			System.err.println("Can not merge collections: "+collectionName
 					+" of type "+collectionType+" and "+overlayCollectionType);

@@ -702,9 +702,13 @@

 			
 			boolean hasPDG = LCIOUtil.bitTest(collection.getFlags(),LCIOConstants.CHBIT_PDG);
 			// loop over the hits from the overlay event

+			int nHitsMerged = 0;
+			int nSimCaloHits = overlayEntries.size();

 			for (SimCalorimeterHit hit : (List<SimCalorimeterHit>)overlayEntries) {
 				long cellID = hit.getCellID();
 				

+				nHitsMerged++;
+				if (this.getHistogramLevel() > HLEVEL_HIGH && nHitsMerged%100 == 0) System.out.print("Merged "+nHitsMerged+" / "+nSimCaloHits+" hits\n");

 				if (hitMap.containsKey(cellID)) {
 					SimCalorimeterHit oldHit = hitMap.get(hit.getCellID());
 					int nHitMcP = oldHit.getMCParticleCount();