What about certain airframes tendency towards coupling? My Cap 232 couples fairly heavy towards the landing gear. My buddy says his Edge 540 is very neutral and has little to no coupling. He says that's because his Edge is a mid wing design as versus a low wing design (like my Cap). I have no reason not to believe his claim that his Edge has no coupling or his explanation of why. It sounds good, and I just don't know enough to agree or disagree with him. It does seem that is a perfect point of discussion for this thread.

Once again, this is for the pure theory of each design. I agree with someone who posted earlier that all the mentioned airframes make good 3D birds if they have aft cg, huge throws, and big power to weight ratio. But this thread is simply to explore the pros and cons of each design. Every airframe has to compromise certain traits in order to capitalize on others.