Finnished rivets for rear spar doubler and L angle and aileron doubler. Spent some time determining hole size for lower wing skin braces. Decided to drill with a #20 and use A5 rivets. While drilling I noticed the upper and lower aileron L angles looked a little off center... I spent a long time agonizing over this and determined it would look "off" either way I did it so it stands as drilled. If I had to change it, I would have to replace the entire lower wing skin. I will have a DAR check this out before I close up the wing.