Index: /issm/trunk/src/m/classes/model.m
===================================================================
--- /issm/trunk/src/m/classes/model.m	(revision 7461)
+++ /issm/trunk/src/m/classes/model.m	(revision 7462)
@@ -544,5 +544,5 @@
 			 %a diagnostic according to the following formula
 			 %viscosity(n)=viscosity(n)+viscosity_overshoot(viscosity(n)-viscosity(n-1))
-			 md.viscosity_overshoot=0.3;
+			 md.viscosity_overshoot=0;
 
 			 %parameter used to print temporary results (convergence criterion,