Resuming work on the right aileron, the next step was to buck the final line of flush rivets on the underside of the nose skin, but first I needed to ensure that any twist was minimized since the riveting would effectively lock in its current angles. My digital angle level showed about 5 degrees twist, so I ended up wedging and clamping opposite corners of the aileron to my worktable before starting to rivet.
Once I had finished that row of flush rivets, I realized that the outermost stiffener of the underside skin was mispositioned trapped in front of (instead of behind) the opposite stiffener. This meant drilling out the handful of rivets holding that outermost stiffener to the skin, and then re-riveting it on the correct side.
With things back as they should be, I applied 3M VHB tape to the trailing edge extrusion, clecoed it in place, and weighted the aileron down on my kitchen countertop for the adhesive to cure overnight.
What's next? After the VHB adhesive has cured, I can double-flush rivet the trailing edge and then pull the final blind rivets on the inboard and outboard ends of the aileron.