[MrFlippant]

Greg suggested dabbing isopropyl alcohol on the tyres, I didn't have any handy so used bio ethanol, as it evaporates it didn’t leave a rubber sludge to clean up.

I'm going to try some IPA based hand gel next time.

Anything that evaporates quickly and doesn't melt the rubber should work well. As we all learned in school, it's not the liquid that does the cooling, it's the evaporation of said liquid that does it. That's why rubbing alcohol has such a cold feeling. :)

I can't imagine starting any truing with 600 grit. I wouldn't even bother going that high for a polish... but I'm lazy, so...