I flushed the brake fluid in anticipation for the ARPCA track DE event the weekend after next.
I had trouble pulling the plastic lug caps. I don't know if there's a special tool missing from my kit, but I made my own by bending the tips of an old pair of needle-nose pliers:
They worked very well, especially on the back wheels that are more recessed. They are now a permanent addition to my toolkit.
Shoutout to Tonythetiger for telling us about the indispensable tool to help mount the wheels! I'm sure it save me a ton of frustration, as I would have not known anything about it if he didn't post about it!