I gap sealed the hinges, installed a larger servo arm, which probably doubled my throw overall. The plane rolls quickly now, no snaps but still a quick roll, much more than i ever imagined. Next will be to get more elevator. In inverted flight, it is a hard to make the plane climb. Another issue is the yaw in turns, easily fixed with rudder but would be nice to get rid of. I also moved the cg back a bit, but I think it could go back a little more. The plane however is a joy to fly now, quick to rolls, smooth loops, gentle landings. Now to get it to snap roll . On another note, when you have no brass tubing around .22 rifle shells make an excellent wheel bushing after enlarging a nose gear wheel , who knew!