Started attaching the stiffeners. Mixed up 40g and got 5 ribs done. I masked off the skins to keep them clean and that worked well. I should have masked the leg of the stiffeners too - I seem to recall others doing that.
6/22 pm - set three more stiffeners. 28g. Damn hot out there.
6/23 pm - mixed up 40g and riveted the last 4 bottom stiffeners. Had enough left over to do the drain flange too. Pretty straightforward.
6/24 - worked from home and squeezed in an hour at lunch. Got the remaining skin stiffeners on the top skin then riveted the fuel cap flange. Straightforward, just messy. Had one rivet sitting proud after it was all done and cleaned up. When ahead and drilled it out and reset it while the proseal was still wet. 26g for two stiffeners and the flange, quite a bit extra.