I bent the tabs on the right trim tab. Now that I have the technique down they bent quite well. When compared to the left elevator tab they are definitely better, but only marginally so. I don't think I could redo the left side much better than it already is. I've heard so many horror stories of cracked trim tabs from these bends, I should be pretty happy with what I have.
Back to focus on the left tab. Took everything apart and deburred, then dimpled the skins and bottom flange of the spar. Set up the countersink and did the top flange. It's pretty thin but came out ok with a wood block backing it up.
Reassemble and get ready to rivet the skin the bottom flange. How the hell do I get to those? Try bucking bar, but was really awkward and had to bend the skins back a lot. Realized that I could actually get back rivet set in there and proceeded to back rivet most of them. Just set clecos in every third hole and used the corner of the backrivet plate overhanging the bench to get them. Pretty good, but did drill out four. They were harder to drill out then they were to set.
Going to stop here for the night. Need to buck the last few rivets on the trim attach brackets. They look tough.