That's exactly what I did on my first homemade tanks. Worked ok but if for some reason it fails or I finally need to make a female mold it would mess up my plug. Hoping my plan for two sides will work just like the ones Paul makes for the foamie turbine conversions, just a larger size. If not I could use the plug to make a mold. I've never done that before either. The photos of my first try are here in post #461-#463:
Skymaster 1/5 Scale F16 Build Thread #461-#463 Thanks for the tips.
Things got slowed down this week. Went to dermatology doc to get a skin cancer spot on top of my head removed. Top of my head feels like I'm hanging from a giant claw and hurts alot so I did not get any tank work done the last two days. Mostly did some design work on a drag chute deploy and release system then quit for the day. More to come when feeling better. Also waiting for some more glass and release film to come in.
Gary