diff --git a/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs b/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
index e98a7fb04d..0f0a494e73 100755
--- a/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
+++ b/OpenSim/Region/Physics/BulletSPlugin/BSParam.cs
@@ -373,7 +373,7 @@ public static class BSParam
         new ParameterDefn<bool>("ShouldUseSingleConvexHullForPrims", "If true, use a single convex hull shape for physical prims",
             true ),
         new ParameterDefn<bool>("ShouldUseGImpactShapeForPrims", "If true, use a GImpact shape for prims with cuts and twists",
-            false ),
+            true ),
         new ParameterDefn<bool>("ShouldUseAssetHulls", "If true, use hull if specified in the mesh asset info",
             false ),
 
diff --git a/bin/lib32/BulletSim.dll b/bin/lib32/BulletSim.dll
index d63ee1d917..bc0e2224f9 100755
Binary files a/bin/lib32/BulletSim.dll and b/bin/lib32/BulletSim.dll differ
diff --git a/bin/lib32/libBulletSim.so b/bin/lib32/libBulletSim.so
index 03de631029..e09dd27437 100755
Binary files a/bin/lib32/libBulletSim.so and b/bin/lib32/libBulletSim.so differ
diff --git a/bin/lib64/BulletSim.dll b/bin/lib64/BulletSim.dll
index e155f0e4ac..5fc09f6a0c 100755
Binary files a/bin/lib64/BulletSim.dll and b/bin/lib64/BulletSim.dll differ
diff --git a/bin/lib64/libBulletSim.so b/bin/lib64/libBulletSim.so
index ac64a401e2..925269d386 100755
Binary files a/bin/lib64/libBulletSim.so and b/bin/lib64/libBulletSim.so differ