Made both elevators at same time. It helped to keep me organized. Back riveting the ribs to the skins is straight forward. Got to use the special elevator bucking bar. It actually worked quite well. I used it for both upper and lower skins. Using pulled rivets and standard hand rivet puller for ribs was no issue. Used a 4" yoke on the Rivet Squeezer to set the rivets on the leading edge skin to the leading edge spar flange. Trailing edge worked out well. Used the trailing edge jig to cleco the skins in place. I used silicone paste to cote the jig so it wouldn't stick to the skin when the Chem Seal was applied. I then used Chem Seal again for the foam ribs and the trailing edge. Cut the lead balance weights and trimmed to the same weight for both sides. I'm using the aftermarket trim billet rather than the nut welded on a small stainless part. Much nicer. Then on to the trim tabs. Made a "break" out of some nice oak 1x4s and a piano hinge to bend the trailing edge of the trim tabs. Bending the tabs on the ends of the trim tabs was a little nerve wracking but it worked out. Really need an extra hand to roll the leading edges. I found that if I roll the top skin first then roll the bottom skin tight and inside of the top skin with someone holding the top skin out of the way it works best.