The plans call for an aileron upward travel range between 25 and 33 degree. So before I could figure where to place the stops I had to install the jig I made months ago to establish the neutral position of each aileron. The second picture shows the aileron in it's nerual position. The 3rd picture is the little-eennie-teenie area I had to get a rivet squeezer into and the first stop installed....in retrospect, it's not a real good idea to wait until after the wing is all built to put these stops on.
Using jig to establish aileron neutral position
Aileron set to neutral position
Disassembled push-pull assembly and 1st stop installed