Interesting. I think that makes some sense. My left wing is the heavier wing but not by much. Might be worth a try. I'll have to think about this for a day or two. I had decided it was time to try servos with more holding power. Im thinking as the speed is increasing my current servos cant hold the ailerons in the left delfected position that this airplane requires to fly straight and some of the left trim goes away hence the right roll.