I just drive flat-out
My DBA rotors saw anywhere between 550-600C according to the thermo graphic paint markings.
RT700 + AP BBK + PMU999: no bleeding or flushing in 8 months, 6 track days and lots of canyons. Just did a full flush now, but could've kept going.
RT700 on my S2000 with stock brakes and Winmax W4: 6 months, 2 track days and lots of canyons. Pedal just starting to feel a bit soft now.