Index: trunk/pswarp/src/pswarpLoop.c
===================================================================
--- trunk/pswarp/src/pswarpLoop.c	(revision 25518)
+++ trunk/pswarp/src/pswarpLoop.c	(revision 25738)
@@ -397,4 +397,6 @@
         }
 
+        pmModelClassSetLimits(PM_MODEL_LIMITS_STRICT);
+
         // measure the PSF using these sources
         if (!psphotReadoutFindPSF(config, view, sources)) {