diff --git a/Fonderie/sfx.c b/Fonderie/sfx.c
index d7aab102..5ab51ec0 100644
--- a/Fonderie/sfx.c
+++ b/Fonderie/sfx.c
@@ -33,9 +33,10 @@ typedef struct {
 	} ptc_t;
 ptc_t	ptc[8];
 
-
+#if DEBUG_LEVEL
 fprintf(stderr, ">>> %s ( %p %f %d )\n", __func__,
 				pimg, kdist, notused);
+#endif
 
 #if 0
 foo = fimg_meanvalues(pimg, means);
@@ -60,8 +61,8 @@ if (verbosity) fimg_print_minmax(mm, "input pic");
 delta[0] = mm[1] - mm[0];	/* R */
 delta[1] = mm[3] - mm[2];	/* G */
 delta[2] = mm[5] - mm[4];	/* B */
-fprintf(stderr, "delta:  %11.3f  %11.3f  %11.3f\n",
-				delta[0], delta[1], delta[2]);
+// fprintf(stderr, "delta:  %11.3f  %11.3f  %11.3f\n",
+//				delta[0], delta[1], delta[2]);
 for (idx=0; idx<8; idx++) {
 	kr = 0.25 * ((idx & 0x4) ? 1 : 3);
 	kg = 0.25 * ((idx & 0x2) ? 1 : 3);
@@ -70,14 +71,13 @@ for (idx=0; idx<8; idx++) {
 	ptc[idx].x = (delta[0] * kr) + mm[0];
 	ptc[idx].y = (delta[1] * kg) + mm[2];
 	ptc[idx].z = (delta[2] * kb) + mm[4];
-	fprintf(stderr, "%6d    %.3f   %.3f   %.3f\n", idx,
-			ptc[idx].x, ptc[idx].y, ptc[idx].z);
+	// fprintf(stderr, "%6d    %.3f   %.3f   %.3f\n", idx,
+	//		ptc[idx].x, ptc[idx].y, ptc[idx].z);
 	}
 
 sz = pimg->width * pimg->height;
-fprintf(stderr, "surface image %d\n", sz);
 trig = kdist * ((mm[1] + mm[3] + mm[5])/6.0);
-fprintf(stderr, "trig value %f\n", trig);
+// fprintf(stderr, "trig value %f\n", trig);
 
 count = 0;
 
@@ -100,7 +100,8 @@ for (idx=0; idx<sz; idx++) {
 		}
 	}
 
-fprintf(stderr, "found %d pixels ok\n", count);
+fprintf(stderr, "%s: %d/%d pixels, ratio %f\n", __func__, count, sz,
+			(float)count/(float)sz);
 
 return 0;
 }