Match-drilled the spar, and ribs for the left elevator, then deburred, dimpled, countersunk, cleaned, dcuffed, and primed a number of parts. deburring is easy using the Scotchbrite wheel; albeit a bit tedious. (Dimpling is really tedious. And as you can see in the photo, lilac bushes are there primarily to hang parts from.
There is a doubler for a recessed area that holds the trim servo. I managed to make two oval holes while counter-sinking for nutplates, so a new part is on order from Vans.
Finally riveted together the counterbalance ribs. A bit ahead of myself there, because there is still a lot of work to do with stiffeners and the skin.
Total time: 7 hours