1. Did some more minor filling and sanding on the elevators.
2. Did more filling and sanding on the upper empennage fairing.
3. Removed all the protective plastic from the rudder (in place since 2002!). Cleaned off the manufacturer's ink stamps from the skin.
4. I noticed a small ding in the rudder skin. This may have happened in any number of ways, and might have happened years or even decades ago. In any case, l prepped and filled it, then later sanded it and primed it with self-etching primer. The rudder is now 100% ready to go to paint.