I helped a club member put one together a couple years ago. He had a YS 120 in it. I know he put CF rods between the upper and lower ailerons. I believe that was the only change he made to the kit out of the box. I maidened it for him and I do remember it needed minor elevator trim. It did go like a bat outta hell. I have always loved ultimates. I wish someone made a 20-30 cc version.
Stangevil29