You're right about the cork, more holes to fill. I usually use thin coats of flat white and sand them between coats to fill. I guess I just never got away from the cork. I do use balsa pretty much equally. I like to get the 3/8 X 3/8 and 1/2 X 1/2 sticks. I can usually get 2 dozen bodies per foot.
I haven't had much trouble with the cork letting loose. The wicking properties of zap-a-gap make alot of difference. But definitely not as durable as balsa.
Does anyone have a good process for cutting foam popper heads. I do have a set of punches and the darn things are tough on your hands! I'm curious as to how everyone else does it! Thanks
Hare
Quando Omni Flunkus Moritati .... "When all else fails...Play dead"