The hardware and design for connecting many of the smaller ARF's ailerons is flawed. It uses whatever horns are used for rudders, elevators, and such.

What you wind up having is 3 different throw amounts every time you move the aileron stick. You got 4 ailerons and two go the same amount, while one of the upper ailerons goes a different amount than the lowers, and the other upper aileron goes yet an entirely different amount than the other three.

Say you want 20 degrees of aileron movement. What you get is the two bottom ailerons going 20 degrees. Kewl. But one of the upper ailerons winds up going 23 degrees and the other goes 26 degrees. Sound sensible to you?