Hi,

I have a problem where I've created a neck-prop out of M3's neck to put a new head on M3.

Problem is that I import the neck-prop, line it up and use the "replace bodypart with prop" option. 

Then, when I bend the neck or arms, he tears at the seams where the neck meets the chest. 

I remember doing this with a neck-stump I downloaded, in order to put V2's head on V3. And I never had any tearing problems there. I know i'm missing something, but what?