Sooner- glad you're back in the air. You probably changed the lateral balance during the rebuild. I've actually glued a coin to one wing tip or another the effect the change necessary. It's also possible to have a "twist" in the fuse. or vertical stabilizer which would cause your roll-out problem also. I flew my Uproar this morning. On reduced throttle it's a kitten. Highly recommended as plane #2. I'm breaking-in a Magnum 52FS, a nice match for this aircraft.