Configured for sport speed or 424 racing, I have not personally seen one come apart, but I will take your experienced word on it

With a 428 engine, and no mods.......yeah, the wing is going to become a multi-piece assembly within about 20 laps.

As for fixing the roll, if you do find that you have a twist/warp, try this......

Outboard of the aileron is about 8" of fixed trailing edge. If it is rolling left, cut into the TE surface about 1" in on the bottom surface of the right wing. Do not cut through. Sorta make a trim tab of the fixed TE section. Bend it up a bit (depending on how bad things are) and CA or epoxy it in place while it is held in positon. Should only require a deflection of 1/8" at the very most. You can then align the aileron to the outboard TE. That will provide you with a great deal of right roll trim.

Bob