I have a 6-piece mould made from the Unimould system. There are a few minor imperfections along the parting lines that needs to be adressed before using the mould.

You need 'wax-in-styrene additive', and you normally add it at 5%. 

Just a few small pieces, maybe 1mm deep, a few mms long here and there. Enough that I'm afraid if I ignore them then maybe I'll be deep into the fiber trying to flatten down the finished prepreg parts.

Racing motorcycles!