Two small steps, two dozen rivets, two hours, and twice as long as I expected.
The rivets associated with the aft bottom skin are challenging to get to and required a mix of techniques. I back-riveted where I could along the bulkhead flanges. The others required bucking and I used a piece of rubber on the bucking bar to keep the flanges tight against the skin.
I also found the rudder stop brace rivets to be challenging. I went very carefully as these would be challenging to remove if things went sideways. For the outermost rivets I used an offset cup set and bucking bar. I was able to use the squeezer on the innermost rivets.
Another page complete!