Carter never got back to me, I sent them a number of e-mails but.......
I still do not understand exactly what happened to the rubber tires, why they were so badly affected by the lacquer thinner, especially as Carter's instructions tell you to use it to clean the wheels, but do not say anything about using too much......
Anyway, I just went back to the neoprene tires, with a thin couple of wraps of tape around the middle, seems to work just fine.
I've got a goose neck lamp on it that needs to be wired in correctly and some other tweaks, but right now it works really well.
The pessimist complains about the wind; the optimist expects it to change; the realist adjusts the sails.
William Arthur Ward