Index: branches/2dbias/psModules/src/detrend/pmOverscan.c
===================================================================
--- branches/2dbias/psModules/src/detrend/pmOverscan.c	(revision 42717)
+++ branches/2dbias/psModules/src/detrend/pmOverscan.c	(revision 42719)
@@ -415,5 +415,5 @@
 		// Reduce the overscans
 		// XXX need to save 2 different chi-square values
-		psVector *yReduced = pmOverscanVector(&chi2, overscanOpts->primary, yscanPixels, false);
+		psVector *yReduced = pmOverscanVector(&chi2, overscanOpts->primary, yscanPixels, true);
 		psFree(yscanPixels);
 		if (!yReduced)
@@ -453,9 +453,9 @@
 			}
 			// Now normVector holds the sliced data; then, compute its robust mean
-			psStatsOptions statistic = PS_STAT_CLIPPED_MEAN;
+			psStatsOptions statistic = PS_STAT_ROBUST_MEDIAN;
 			psStats *stats = psStatsAlloc(statistic);
 			if (!psVectorStats(stats, normVector, NULL, NULL, 0))
 			{
-				psError(PS_ERR_UNKNOWN, false, "failure to measure clipped mean as normalization of xReduced");
+				psError(PS_ERR_UNKNOWN, false, "failure to measure robust median as the normalization of xReduced");
 				psFree(stats);
 				psFree(normVector);