In fact, in order to get "full power" from ailerons on cambered wings, if you want the most power from the combination of both ailerons, the ailerons must move at different rates.
Wrong, for full power you have full deflection for both ailerons and correct the yaw with the rudder. I know for a fact that many full scale planes do not completly correct with differantial ailerons. The same C 150 I mentioned did not because the roll rate was too slow. Fighters almost never use this though moderen computer controlled ones do during the landing configuration.