A good full day in the shop. Picked up where I left off yesterday on attaching the outboard rib/counterweight assembly. Bucked several ever increasingly difficult rivets. Most involved precariously balancing the bucking bar in just a few fingers through the pulled back skin, or even through the lightening holes in the spar. Got it done though. Finished the remaining rivets in the skin along the counterbalance and also went back and squeezed the rivets in the bottom of the rear spar - don't know how I missed those earlier. Holding off on the top of the rear spar for the trim tab hinge. Also holding off on the finishing up the in board end of the elevator until I get the back-ordered elevator horns. The left elevator is done to the point of prosealing the trailing edge. I'll set it aside for a bit to work on the trim tabs. Prepped and primed the trim tab skins, spar and the inside surfaces of the trim cable attach brackets. Masked off the areas of the skin where the foam ribs will be bonded. Priming session went well; getting very comfortable shooting primer. When the parts were ready for handling (<20 min), I pulled the masking tape and re-masked over the freshly sprayed primer to scuff and clean the foam rib areas. Then I got to do the final bend of the trim tab skins. They are pre-bent from Van's, but still open quite a bit to do the work on the inside. So I need to final bend them in the brake that I made last week. That went great - pretty much got it right the first try. I can tweak the bend a little bit by hand later, but the clamps that I made conform to the skin pretty well, and there is no distortion of the skins. Moved forward with bending the end tabs to close the end of the trim tabs. I started with the longer, inboard end, and figured I would bend the bottom first and then bend the top over it. I set it up with the wedges to clamp it in place and carefully measured the 1/32" from the end shown in the plans. Bent the bottom tab starting with a wood block and then hit it with the flush set on the rivet gun. Came out fine. Flip it over to do the top tab and since the bottom was already bent, I couldn't align the support wedge to be 1/32" from the end - best I could do was closer to 1/8". Well, not much I can do about that now so set the block as close to the end as I could and bent the top tab. It came out fine, but the unbent ends are extending quite a bit past the close out tab. Maybe I can trim those tabs a little and clean it up later - we're talking 1/16th of an inch, but it is noticeable. Set up to bend the second tab, and this time decided I should set the wedge and do the two bend simultaneously to avoid resetting the wedge. Also, decide to use the double sided tape on the wedge called for in the plans - don't know why I didn't do it the first time. Set the wedge at the 1/32" from the end and clamped it. Started bending the bottom tab with a block, then bent the top tab. Then finished the bottom tab with the rivet gun, then finished the top tab with the gun. Came out much better. Looks like I have another part that I might consider redoing if the right side turns out a lot better. There are things you get to practice on the practice kits, but most things the first realy practice is on the plane. I guess that is why so many people build a second plane. Got the trim tab all cleco'd together and match drilled the end tabs. Also match drilled the trim cable attach brackets. I didn't see in the plans where it said to actually final drill the skin to spar holes, but the next step says to disassemble and deburr, so I figure I was suppose to final drill those already - I did it. Almost ready for the proseal session. Just need to deburr and dimple the trim tab. [update] Asked Tech Counselor about the extensions of the skins past the tabs. He said people typically file them down. I did that and they look a lot better.