This was a short session, and also the last one for at least a week. I started by finishing countersinking the last holes in the rear spar and inboard doubler. There were a few -4 holes in that doubler that needed to be countersunk to accommodate dimpled skin, so I had to make a new hole in my test coupon for that size to verify it. Then I started dimpling the holes in the rear spar flange that I could access. Since I knew I would be taking a break, I didn't want to uncleco the rear spar (in order to access all of the flange holes) quite yet. Next, I drilled out all of the rivets in the one aileron hinge bracket that had the bad bearing. Although I think I had managed to get the bearing spinning freely after manipulating it enough by hand, I didn't want to risk that it would seize up later so I'm still opting to replace it with a new bearing. What's next? I'm going to Oshkosh/Airventure for a week and keep an eye out for RV-specific vendors this time. I also want to look at the Dynon avionics booth to see how much I like their UI, before I commit to anything. After I get back, I'll need to remove the rear spar for priming and then start riveting it on.