Hi, I'm currently restoring a trunk lid and my plan is to do a split mold as in EC hood-mould tutorial. I have one question though. 
As seen in the picture the outside skin is wrapped around the inside. I'm wonder if is is anything I have to think about with that edge ? I'm using wax on it to prevent mechanical lock. have anyone done something similar that can show a picture of their mould ?
Thanks for the help, Best regards Marcus