Tonight's work session started by finishing countersinking the trailing edge extrusion, then dimpling both of the left aileron skins. Then I bucked the row of flush rivets that close up the underside of the nose, locking in the alignment of the aileron. After that, I applied VHB tape to both sides of the trailing edge extrusion and clecoed it into place and weighted down flat on my kitchen countertop.
What's next? After the VHB adhesive cures overnight, I can double-flush rivet the trailing edge and then mark off both ailerons as done.