Index: trunk/psModules/src/objects/models/pmModel_GAUSS.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_GAUSS.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_GAUSS.c	(revision 42093)
@@ -203,5 +203,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 1.0)) {
       return false;
     }
Index: trunk/psModules/src/objects/models/pmModel_HSC_V1.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_HSC_V1.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_HSC_V1.c	(revision 42093)
@@ -223,5 +223,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 1.0)) {
       return false;
     }
Index: trunk/psModules/src/objects/models/pmModel_PGAUSS.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_PGAUSS.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_PGAUSS.c	(revision 42093)
@@ -204,5 +204,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 1.0)) {
       return false;
     }
Index: trunk/psModules/src/objects/models/pmModel_PS1_V1.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_PS1_V1.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_PS1_V1.c	(revision 42093)
@@ -223,5 +223,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 1.0)) {
       return false;
     }
Index: trunk/psModules/src/objects/models/pmModel_QGAUSS.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_QGAUSS.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_QGAUSS.c	(revision 42093)
@@ -224,5 +224,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 1.5)) {
       return false;
     }
Index: trunk/psModules/src/objects/models/pmModel_RGAUSS.c
===================================================================
--- trunk/psModules/src/objects/models/pmModel_RGAUSS.c	(revision 40491)
+++ trunk/psModules/src/objects/models/pmModel_RGAUSS.c	(revision 42093)
@@ -213,5 +213,6 @@
 
     // set the shape parameters
-    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false)) {
+    // the last parameter is the scaling factor for Moments to shape parameter radius guess
+    if (!pmModelSetShape(&PAR[PM_PAR_SXX], &PAR[PM_PAR_SXY], &PAR[PM_PAR_SYY], source->moments, false, 2.0)) {
       return false;
     }