With the assistance of my friend Jim, I leveled the fuselage longitudinally and laterally. We added a couple of shims, and got it within 0.1 degree in both axes. Close enough for me.
Next, I removed the comm antenna baseplates from inside the belly skin so they won't get damaged when we tap the drift pins through the wing spar.
Next, I mic'ed the aft spar attach bolts and prepped some of the tools I'll need on Wednesday, which will be Wing-Hanging Day.
Finally, I pondered some solutions to a slight mistake I made last night when I was creating the flap hinge pin keepers. More later.