Frabricated a securing mechanism for the passenger side door.
The fix is basically a thick piece of angle riveted to the top side of the factory supplied handle. I then drilled a hole in the free side of the handle and bolted a rod-end there.
The rod end was connected to all thread. I then riveted a piece of tubing onto the door for the all-thread to be retained by. Finally I drilled a hole large enough for the all-thread into the fuselage.
I also spent a large amount of time chasing down friction in the rudder system. The biggest offender was a huge spot I had not greased - the nose strut stop plate! I ended up just giving everything more doses of grease, even the nylon fairings. With the tail tied down I was able to reduce the friction by an order of magnitude.
By the time I was finished with all the other work today the winds had picked up past my threshold. I did a taxi test and a run-up. The door held without any pucker on the ground where it had previously puckered some during run-up.
Taxi tests with the newly loosened steering system were highly encouraging. Friction for ground handling has been reduced to at least a quarter compared to the first flight.