Oh sure. Those F3B/F3Fs sure fall under the expensive category! I would probably add one for anything not foam. > "everybody" puts a flight controller between

Oh sure. Those F3B/F3Fs sure fall under the expensive category! I would probably add one for anything not foam. > "everybody" puts a flight controller between the servos and the receiver these days This was the point I was trying to address. It's definitely commonplace, but not essential, and the plane is aerodynamically stable without one.