Finished dimpling the few pieces that needed in on the spars, ribs, and stiffeners. After that, I setup the countersink for countersinking the trailing edge. I wasted about 20 minutes trying to set it up on the drill press, at which point I realized that I'd probably be better off chucking the countersink in my handheld drill and doing it that way - glad I did, much better feel and great results. I must say, I was quite happy with the trailing edge wedge I designed and printed for this - I ended up using both 12" pieces butted up to each other. I clamped the wedge to the jig, and then was able to countersink about 20" of wedge at a time.
After that, I attached the rudder stops to the bottom bracket (VS-01010) and called it a night.