Index: trunk/psphot/doc/stack.txt
===================================================================
--- trunk/psphot/doc/stack.txt	(revision 27848)
+++ trunk/psphot/doc/stack.txt	(revision 28013)
@@ -1,2 +1,21 @@
+
+20100506:
+
+  we may load RAW and/or CNV images.
+
+  * options->convolve:
+    * if only one of RAW or CNV exists, convolve it to match target PSF
+    * if both exist, convolve desired one
+    
+    * if matching PSF exists, use it (unless told to re-measure)
+    
+    * output goes to OUT (which is then used by psphot analysis routines)
+
+  * detect
+
+    * if (RAW) ? RAW : OUT
+    
+  *   
+
 
 20100503: