I attempted to rivet the two ribs I prosealed yesterday. Emphasis on attempted. In the end I got them done, but it was definitely not my best showing. For whatever reason, I had an awful time setting rivets today. Especially when I got to the extreme curvature of the leading edge, I kept clinching them over. I had to drill out and redo more than I care to admit. I was planning on prosealing another two ribs today, but ran out of steam because of all the riveting difficulties. I found a number of places where I need to spread a bit more proseal, but I think I'll just wait until I'm completely done with the ribs, then seal all of the rivet heads and put more on the light spots.