Index: trunk/ppStack/src/ppStackLoop.c
===================================================================
--- trunk/ppStack/src/ppStackLoop.c	(revision 41529)
+++ trunk/ppStack/src/ppStackLoop.c	(revision 42094)
@@ -31,4 +31,10 @@
     ppStackMemDump("prepare");
     if (options->quality) return true; // Can't do anything else
+
+    // if we want to skip the rejection steps, and instead use a percentile clipping:
+    if (options->clipPercent) {
+      bool result = ppStackLoopByPercent (config, options);
+      return result;
+    }
 
     // Convolve inputs
@@ -88,5 +94,5 @@
         pmCellFreeData(options->cells->data[i]);
     }
-    //MEH -- must uncomment back out -- unclear is should be moved after pixel rejection
+    // MEH -- must uncomment back out -- unclear is should be moved after pixel rejection
     psFree(stack);
 
@@ -126,9 +132,11 @@
         return false;
       }
-    }
-    else {
+    } else {
       // Since we haven't convolved, I believe we do need to normalize here.
-      //MEH -- see below for comment on ppStackCombineFinal and bscaleOffset
-      if (!ppStackCombineFinal(stack, options->convCovars, options, config, false, true, true, true)) {
+      // MEH -- see below for comment on ppStackCombineFinal and bscaleOffset
+      // last 4 parameters are: safe, normalize, grow, bscaleoffset
+      // EAM : looks like we do NOT need to normalize here eithr because ppStackConvolve is still called and
+      // the inputs are normalized
+      if (!ppStackCombineFinal(stack, options->convCovars, options, config, false, false, true, true)) {
         psError(psErrorCodeLast(), false, "Unable to perform final combination.");
         psFree(stack);
@@ -154,5 +162,6 @@
       return false;
     }
-    ppStackFileActivation(config,PPSTACK_FILES_BKG ,false);    
+    ppStackFileActivation(config, PPSTACK_FILES_BKG, false);    
+
     // Photometry
     psTrace("ppStack", 1, "Photometering stacked image....\n");
@@ -184,5 +193,5 @@
         return false;
     }
-    //MEH -- also must uncomment back out..
+    // MEH -- also must uncomment back out..
     psFree(stack);
     psLogMsg("ppStack", PS_LOG_INFO, "Stage 7: Cleanup, WCS & JPEGS: %f sec", psTimerClear("PPSTACK_STEPS"));