Riveted L aileron brace to wing skin. Had to drill out one rivet and replace it with a MS1097AD4-4 "Oops" rivet. Trailing edge of skin is slightly wavy in places, especially outboard. (See #2 photo below). The skin deviates about 1/32" to 1/16" from a straight line. I'm not especially happy about this, but I'm not sure how it could have been prevented. I squeezed the rivets as consistently as I possibly could.
Postscript: I've looked at several RVs in the days since then, and every single one has some slight waviness on the skin here. So I feel better.