Marty,
Here are my observations:
Rear Tires: Wear looked normal with slight accumulation of rubber on outer edges, just like in shorter duration heats.
Front Tires: Normal buildup of rubber on outer edges. May have induced slight bounce, but really not anything out of the ordinary.
Braid: I was running the thinner silver braid. After 20 minutes, areas of bare copper are starting to appear.
Bushings: No detectable wear. I did lube front and rear axles, the motor bushings, and the gears before starting the race. I did NOT lube the braids as I currently don’t have anything to do that with. I did NOT stop and clean the tires during the session. Grip was good and cleaning was not deemed necessary.
I’m not sure how I would have felt after 3 sessions, especially back to back to back. Kings was closing, so I didn’t have time for any additional running.
Jim J.