RE: Balsa USA Smoothie Build
I know what your saying about putting stock into a pre-Balance-BUT I would put the prop and spinner and everything else on (include battery) Everythingjust to get an idea. It's a small plane and not much room to work. By doing this you will have a good picture of the finish. Hopefully it comes out with a slight nose heavy attitude before cover. Good luck and please post results. It is a sweet flying little machine.
Mark
PS-I believe a 1/2" ahead of the GC makes it nose heavy????? Flip it upside down of coarse, put the prop and spinner on and check again-You should be at the front edge of the spar to be in really good shape.