Peeled the plastic from the skins and begain clecoing. The trim tab was a little challenging because the hinge was about 6" too long, but I didn't want to cut it until I was sure. The instructions did not say it needed to be cut. Also, the bracket that holds it on the elevator needed to be bent more than I was comfortible with at first. Turns out it bends right into place pretty easily. Lastly, the instructions speak to shortening rivets, but the only ones I needed to shorten were the two at the trailing edge of the control bracket and one on each side of the elevator where the hinge is (it blocks the rivet from going all the way down). When I started riveting, I could feel one of the end rivets on the longer reinforcement bracket was bouncing the rivet back out of the hole. I wasn't sure clear-drilling would work so I pushed it up with a small allen wrench from the rivet hole in the opposite side.