JohnnyB, I've never flown a 2 axis airplane but I have owned 2 ultralights. A Nomad Honcho and a Phantom, both had 3 axis control. I like the idea of being able to cross control, as in a slip, even though, airplanes that don't have a solid fuselage, like the Weedhoper, Quicksilver, Honcho, Phantom, etc. trying to slip just isn't the same. There's nothing to slip against, so to speak. Since I learned to fly in a 3 axis airplane, that's what I would go with, just my openion. Just like I would not want to TRY to fly a weight shift, I feel better doing what I know ! Of course, you can adapt to most anything I suppose. Anyway, that's all I got !
Bob