i\'ve been through this exercise with a fairly stock sti.
i don\'t think there is a one-size-fits-all remedy. this is what i\'ve tried anyway, i still ruin the 4pot/1pot setup with bendix ultimates over a trackday but no major failures recently.
-pay extra attention to warming them up on the outlap, and cooling them on the inlap. ie. not using the brakes AT ALL to allow an airgap between pads and rotors in the pits. some pit entries are interesting to coast into, but i just nudge the handbrake if needed
-whilst in pits, i push the car to help cool the rotors evenly
-made sure front wheel bearings are good. ruined many many rotors until i sorted this. 2nd hand hubs are asking for failure, i pressed in genuine new bearings
-adjusted my braking style. i tend to brake about 80% of the available brake... this doesn\'t mean i don\'t brake hard, but as the car slows into corner entry i just dont brake harder while everything is red hot. (at that point there is more braking available just dont use it) i brake a little earlier to compensate. its a bit weird as people say i do brake late?
-loose all the extra car weight possible
-bring extra rotors
have managed a dozen spirited laps of manfield at good pace. ran out of fuel and stamina before the brakes gave up