I used the stock screws for the control horns and the top half of the Dubro control horn's setup on the underside of the screw so the collett or whatever would lay flat on the aileron. I was going to just use the stock setup but when I was installing the ball link thingy on the screw/horn one of them started rotating during installation. Did not want to take a chance on this bird with such massive ailerons.

Kurtzz