I have made a lot of Monocoat hinges. Well I use ultracoat. I just cover the wing leaving enough to cover ailerion too and put ailerion in place but folded up 180 degrees and wrap covering around it and seal in place. Then do top of wing folding ailerion 180 degrees down and do same thing. works great! You can scotch tape the control surface in place while doing this and just cover right over it. Jim Finn