Mirroring NURBS for Blend Shape Problem!

[dataforge9000]

Trying to Mirror a NURBS head made from several patches with X at -1 for use in blend shapes. But, it acts like I bound it to the world origin and slides across the screen as I approach 1 untill it stops at the blend shape target. I have used freeze transforms and reverse surface. I have also started a new scene with only a single sphere and duplicated the issue. What I am missing?

[badcookie]

the sliding is caused because you froze the transformations. the blend is responding to the transformations of the original object vs. the transformations of the blend shape. if you freeze the transformations, then the relationship is gone (i.e. a 1 value will be the position of the blend shape.) never freeze transforms on the actual blend shapes, and there is no way to fix it once it is done. you can freeze the original object, but only before you create the blendshapes.
also, make sure that when creating the blendshape, local is on as opposed to world.

[dataforge9000]

Amazingly enough I understand. But how do I mirror a NURBS surface for use with blend shape? All the scripts and plugins that I have found say they only work with Polys.