Hey Bleed can you briefly extrapolate on that? I thought changing the skin afterward screws everything up. Do you add an edit poly modifier on top? Do you use Skin Pose?
I'll see what I can do if you send it my way.
Proportions are not a big problem to fix after a character has been skinned. There is an option in the Skin modifier that allows you to do some major changes, like moving bones or altering the mesh. You can do this without messing up your skin weights.