I'm making a hard top roof for my car and the inner part is quite a complex shape with lots of complex curves and sharp returns.  In this case pro-finish is not my friend as its just not mobile enough.  I'd appreciate some pointers on how you guys deal with these sort of problems. 

This is a pic of the plug, the white is the mould for the outer part, the blue is the plug for the inner piece that I'm moulding.