This session started by using the hand squeezer to install a bunch of nutplates on the splice strips, the landing light brackets, lens backing plates, and inspection plate reinforcement ring. Some of those nutplates needed to be dimpled before they could be riveted together. Next, I started assembling the wing skin, the ribs, splice strip, and J-channel stiffener together on the wing cradles with clecos. With everything fitting together nicely, I started using the air rivet gun to buck some of the flush rivets starting from the outboard side. I managed to get the first two ribs fully riveted in, the section of the J-channel between those two ribs, and the landing light support bracket all riveted in. I've realized that the instructions did have a legitimate reason for having you rivet all of the ribs in first before clecoing in the J-channel, and that's because the J-channel will partially impair full access to one of the rivets in the ribs. However, I think I should be able to just use my foot-shaped bucking bar to reach under the J-channel for that one rivet on each of the remaining ribs, without having to drill out the J-channel that I've already partially riveted in. What's next? I'll be going on some xmas vacation travel, so I won't be able to buck the rest of these rivets in the ribs until after I get back.