Mark the rib positions on the bottom skin and hot glue some locating blocks on the spar to locate the ribs. These blocks are a bit smaller than the last, about 1" long, and with the grain in line with the joint for easier removal. Decide on a different approach to last time. I'll flox on R57 & R/B33 and do the rest later.
Trimmed the 5 min join on the skin foam.
Marked, cut and sanded the fuel drain.
Dug out the pour foam I haven't used in ages and started to fill in the starboard strake void. Started with 30/30ml.