GT12 Supastox kit tyres

[neallewis]

Anyone know the exact shore ratings of the supastox kit tyres? I was happy with them out the box on my local track and want to get another set to rotate them.

Also, what's the done thing now with regards to tyre storage? snappy bag them after applying some additive, or store free to air?
I'm new to GT12/mardave class after 20 years off, but I used to race an RC12L and ministock back in the day, where I just use to slap some TQ orange/modified on raceday.