Index: trunk/ippconfig/recipes/ppSub.config
===================================================================
--- trunk/ippconfig/recipes/ppSub.config	(revision 35562)
+++ trunk/ippconfig/recipes/ppSub.config	(revision 35581)
@@ -108,4 +108,19 @@
 END
 
+# test setup for nodual case
+DIFF_NODUAL    METADATA   
+        DUAL             BOOL    FALSE    # Dual convolution?
+        INVERSE          BOOL    TRUE    # Generate inverse subtraction?
+        PHOTOMETRY       BOOL    TRUE    # Perform photometry?
+        CONVOLVE.TARGET  STR     SINGLE_AUTO
+
+        @ISIS.WIDTHS    F32     1.5  3.0  6.0   # Gaussian kernel FWHM values
+        @ISIS.ORDERS    S32     6    4    2     # Polynomial orders for ISIS kernels
+
+        SCALE.REF       F32     5.0             # FWHM reference for kernel parameter scaling
+        KERNEL.SIZE     S32     20              # Kernel half-size (pixels)
+        STAMP.FOOTPRINT S32     20              # Size of stamps (pixels)
+END
+
 # Difference of two warps
 WARPWARP	METADATA