sounds like it was a fun day out there. well the rain made it exciting for a few people also don't forget that with the rain the track temps would have been lower. so michael those temps would be getting up there on a warmish day. i personally run the A1RM's on my car and for me they didn't need to be cooled down after 3 hot laps mate. i was doing 10 hot lap sessions and there was no brake fade or it felt like it needed to be cooled down.
i remember my first time out there and the whole day i managed a best lap of 1:28:xxx and that was on street tires etc.