Not sure what you mean but hope this helps……
I would tape something that is the same thickness as the tip aileron and site it to the center of the wing tip (both) then site along the aileron to the other aileron. Remove wing from fuse. Heat and twist, Cool and repeat until straight. The ailerons in you picture look bad but I have been able to fix much worse. You may need to take masking tape (sticky tan stuff) to lift the covering off the cross braces. Place the tape over one pieces and pull straight up fast to pop the covering off the wood. Sometimes you can just wrap the tap around your finger and work small areas at a time. Heat it with the heat gun and use the iron on the outer edges to help move the wrinkels by pushing hard to slide the covering in the direction you need. Use a pin to poke a small hole in each sections that is puffing up. When it looks good tack (cross braces) the covering back down while holding everything straight.