Index: trunk/ippconfig/recipes/ppStack.config
===================================================================
--- trunk/ippconfig/recipes/ppStack.config	(revision 31633)
+++ trunk/ippconfig/recipes/ppStack.config	(revision 31674)
@@ -59,4 +59,5 @@
 ZP.MATCH	F32	0.1		# Fraction of images to match for good star
 ZP.AIRMASS	METADATA		# Airmass terms by filter
+	u.MP9301 F32	0.0
 	g	F32	0.0
 	r	F32	0.0
@@ -67,4 +68,5 @@
 END
 ZP.TARGET	METADATA		# Target zero point by filter
+	u.MP9301 F32	25.0
 	g	F32	25.0
 	r	F32	25.0
@@ -93,5 +95,5 @@
 
 OUTPUT.NOCOMP   BOOL    FALSE           # use filerules that make conconpressed outputs
-OUTPUT.LOGFLUX  BOOL    FALSE 
+OUTPUT.LOGFLUX  BOOL    FALSE           # choose a log-scaling for output images
 
 OUTPUT.REPLICATE BOOL   TRUE
@@ -147,2 +149,20 @@
 STACK_THREEPI  METADATA
 END
+
+TEST1 METADATA
+  PSF.AUTOSIZE	  BOOL	FALSE		# Determine output PSF size from input PSFs?
+  PSF.OUTPUT.FWHM F32	6.5		# Target size for output PSF (if not auto-sized)
+  PSF.MODEL	  STR	PS_MODEL_PS1_V1	# Model for PSF generation
+END
+
+TEST2 METADATA
+  PSF.AUTOSIZE	  BOOL	FALSE		# Determine output PSF size from input PSFs?
+  PSF.OUTPUT.FWHM F32	7.0		# Target size for output PSF (if not auto-sized)
+  PSF.MODEL	  STR	PS_MODEL_PS1_V1	# Model for PSF generation
+END
+
+TEST3 METADATA
+  PSF.AUTOSIZE	  BOOL	FALSE		# Determine output PSF size from input PSFs?
+  PSF.OUTPUT.FWHM F32	8.0		# Target size for output PSF (if not auto-sized)
+  PSF.MODEL	  STR	PS_MODEL_PS1_V1	# Model for PSF generation
+END