I finished the top and bottom skin riveting on the stabilator, Made the splice plate and drilled out to a #50 ( I couldn't figure out what the little holes were for and how important it was to use the called out #56, but then I realized it mustbe to secure the hinge pins with safety wire, so a #50 is just fine).
I added the right hinge and got about 10 rivets in before realizing the stabilator was upside down. Patiently drilled out the rivets, reoriented the unit and riveted both hinges, added the two outboard ribs on each end, riveted all the aft flange holes and then added the aft skin, drilled out , deburred and riveted.
A good day's work.
I have only one bad rivet and it's in spot that's obvious.The most forward hole on the outboard edge. The rivet was not fully in the rib flange when I squeezed so it's squeeze between the skin and rib.
I've elected-- so far-- to do nothing about it . Drilling it out is asking for trouble. I consider options over the next few years as people with knowledge stop by the hangar.