I see that you have added an additional vertical stab to the bottom of the float plane. I have been told that it isn't necessary on a J3 Cub. Have I been misled?
I know that the beaver and Cessnas need additional vertical stab but the info that was laid on me was that the CUB has ample vertical stab. Please fill me in before I blunder my first takeoff with it. I've put that additional area on my other float planes but was going to forego it on the cub. It's a balsa USA 1/4 scale and is ready to fly.