Worked some more on the rudder top and bottom caps: 1. Sanded off the top, "manufacturer's" seam of the rudder top and bottom caps. 2. Sanded the flange area of the rudder top cap. Applied a bead of filler and scraped it flat. (Tomorrow I will sand it in a way that will improve the seam between the cap and the rudder. 3. Filled several blind rivets at the bottom of the rudder skin. 4. Sanded the tail light mounting pad so it's flat. Used the tail light mounting base to mark the location of the attach rivets and the center wire hole. Drilled the attach holes and the wire pass-through hole. 5. Began fitting the rudder bottom cap by sanding and filing the edges. It fits MUCH better than the previous white cap that I've been wrestling with. [NO PHOTO].