I don't think warmers are a requirement, me personally have used Diablo Corsa and Corsa111 on my 749 road bike for the last 3 sets of rubber doing 25 laps of the ring in a weekend also.
My only bitch is being constrained to H rated, Z rated are available and lots of peeps would prefer to use them, I would for sure, even tho' I've only had one moment with these current tyres, which was a back end step out at clearways.
Like Skids, Brands was a torrential down pour which stopped the race after 6 laps, but I actually enjoyed racing in it. But the rain does level the field, quite a bit.
