I have a Somethin' Extra and I couldnt' get the elevators exactly right on the horizontal stab so looking fromt the back, the right side has a huge gap all the way through, and the left side part of the elevators, the inside has a purdy big gap and the outside is smaller...............but I just couldn't get them right......but I have found threads where people put monokote or the sticky covering alternative for small holes, and putting that down in the gap on one or both sides....I wonder if that would work on mine.........I won't be flying that plane that fast because it's aerobatic, but I just don't want to take a chance with a plane like that, and especially a brand new one...........