Finally finished the horizontal stabilizer (except for one 4mm countersunk rivet I need to fill in a hole I accidentally made too big). I got the correct trim motor wire installed, I marked what kind of rivets go in which hole, lined up the skins, made sure that everything was aligned, and got ready to rivet. Then, just as I was getting started, Rosie decided she wanted to do it. She ended up riveting about 90% of the skin. She is a master of the rivet gun!