Finished fitting, drilling and riveting of right aileron. The tip rib did not fit as well as I would have liked. I made a shim from 1/8 angle stock scrap to fill the gap along the front of the rib. all in all the assembly turned out well. I still have about 12 rivets to set aroung the aileron counterbalance. I need to order a narrow hand riveter for this as the pneumatic riveter is too big for that area.