Getting started on the Wing Ribs. Got them all deburred and match-drilled to the wing spars. One fun thing was that I had to use my brand-spanking new right-angle-drill attachment. That was fun. I was hoping to have all the wing ribs and accessories (like the flap hinges) primed and ready for riveting, but I massively underestimated the amount of primer I would need. As a result, I've got less than half a can of primer left and 24 ribs (out of 30) still to be primed. Because I realized I would run out of primer early on in the process, and would have enough only for a few ribs, I chose wisely which ribs to prime first so that I could at least get the flap hinges attached while I wait for more primer. I believe I'll need about another 5 cans of primer for the ribs.
I forgot how much I don't like priming at night. It's really hard to get the primer to look smooth with only a flashlight (which I broke, incidentally, by dropping it). So it's really, really hard to get the primer to look smooth in almost complete darkness. Turned out just tolerable in the end (after a few brink-it-back-out-and-spray-it-again incidents that is.)