Index: trunk/psphot/src/subtract_psf_source.c
===================================================================
--- trunk/psphot/src/subtract_psf_source.c	(revision 4129)
+++ trunk/psphot/src/subtract_psf_source.c	(revision 4251)
@@ -25,4 +25,7 @@
   pmSourceSubModel (pixels, source->mask, model, false);
   model->params->data.F32[0] = sky;
+
+  // XXX adjust (enhance) the noise matrix a la dophot?
+
   return (true);
 }