Servo interference
Don't feel to bad, Mike, a lot of us did the same thing when we started building kits. You are going to have to move something. Years ago I seem to remember I hooked up the pushrod from unbder the servo arm to help clear. Whatever you do, however, make sure the aileron servo has clear movement. You can handle a stuck throttle, but a stuck aileron servo can spell doom.
You have just learned why most of us mount 2 servos in the wings, one for each aileron. Easier to hook up-you have a straight shot to the control horn-and you never even have to think about interference. I thought the 4* had dual servos. Maybe it's the 60 I am thinking of, I've had a couple of those.