I just got back from the field where one of our most experienced pilots looked at doing with me and he felt that if I can’t get all the twist out a slight bit of a trimming of the right elevator during flight should correct it. And then I can adjust the linkage to have that bit of up set in the right aileron. I’ll have to have my wife help me twist the wing while I shrink the covering this evening. Meanwhile, I have some other adjustments to make. We discovered a problem with ground loops while taxiing due to not enough rudder authority on low rates. It was suggested I put the rotor rates on a separate switch so I could use higher rates on the ground with lower elevator inhaler on rates for takeoff. Plus, he suggested I remove the 2° of right thrust in the motor. And I agree that should help.
things you just don’t know, till you try them out.