@odf: I'm thinking that the "blank" should have basic movement JCM deltas at the absolute most (depending on who made the blank, and what figure it's made for). 

{oddball example: if you move the toes downward past n degrees, the foot starts swinging/curling downwards... things like that. The shoulder JCM's would be a perfect example as well.}

I can see those in place for movement reasons, and I doubt that anyone would complain at their presence.

(...been too $#@! long since I had to worry about stuff like that. :) )