Thanks. I've just rechecked my camber settings - they're not really extreme actually - about -1.5 degrees, so it's puzzling, especially since the wear is on the OUTER rim, rather than inner.
Hmmm, that is odd. Mine started separating on the insides. Anyway, I think you'll be happy with the sorex 36 tires. Very rough guess, but I'd say they've already lasted twice as long as the kit tires and I'm still practicing with them.
Nice looking bodies, btw.