Just did my first track day evening at a roasting hot Donington(30C)!!with Eliseparts 4-pot calipers,285 AP discs +SRF.They were v.good-no fade at all even on the full cicuit(Melbourne loop is hard on brakes),feel was better than standard with no tendency to lock up at the front which standard tends to do.Very pleased and I can recommend them.
out of interest what pads are you running ?
RS14 front and standard rear for best balance.