I have used the 225's on the ailerons of a couple profiles and they did ok.. I still used standards on the rudder and elevator though... The problem with the smaller servos is not the amount of torque but the gear trains.. The gears are small so they may be able to handle the torque but not in a constant "lock to lock" manner that they may incure during 3-d flight...Also, one bump in the "hanger" and the gears are toast... There's my .02 worth on it.