i know that problem. It happened on my cap 232. what happens is the rod has to go through the wing to get to the aileron. the hole in which it lives has worn into an oval. that means that it can be pushed farward a lot before the ailerons respond. there are 2 solutions. #1. on the bottom, cut the covering and the wood out where the rod runs through. disconnect it from the servo. slip a tube over the rod to act as a bushing, and fill the outsides in with wood filler. #2. take the aileron off and stuff wood filler in from the side. you will have to replace the hinges so while you are at it, you may want to put biger ailerons on for a bit more responsiveness and better response at ow speed.