Glad I put top on. Was going to try to measure my way out... Would have missed the adjustment below.
Raise left arm rest 1.5" at aileron bracket. Then match right side to left. 1.25" on right side. Mark both sides. Shoot laser level to mark vertical trim of aileron bracket. Trim to fit. Trim shear webs on both sides to match slope of armrest. 9" up from seat at rear of aft seat back.