I am making a balsa mold so I can make a couple fiberglass parts for my 1/4 scale F4U-5N Corsair and was wondering what the best thing to do to it so I can get the part off of it. I thought about glassing it and then just using mold release after I finish sand the glass covered balsa mold. What do any of you do when you use a balsa mold if you leave it bare?

Thanks,

Gibbs