Hey all,
I searching for a way for 2 object s vertex groups to share the same location. Eg tweaking the one mesh affect only the vertex group of another. I found some old threads but no success.
The 2 meshes have only partialy the same vertex location so i think shape keys is the way to go. I tried with shrink warp but extreme deforms messed up positions.
It’s not a solution to your problem, but the Surface Deform modifier (Deform > Surface Deform) seems to give better results than Shrinkwrap.
The disadvantage is that there’s no vertex group option in the modifier to let you specify what vertices you want to be deformed.