1. Is there a good solution to performance braking + rotor longevity (other than using sintered pad). 2. How much below the service limit is safe ? (is 0.3 mm less than 3.5 mm OK?)* 3. Is full floating relevant only for the track ? or has advantages for regular day to day use 3.1 are non floating rotors relevant ? 4. What are good quality alternatives to the OEM ? 4.1 which are better? Best ? 4.2 are there special rotors for sintered pads ? 4.3 what brand is the OEM rotor ? 5. Seems that most of the load is on the left rotor (it gets much hotter and pads wear quick on the left - i guess its the integral system front+rear that puts the load on the left) *5.1 Does left rotor Wears first ? *5.2 *Is it O.K to replace only the left (with the same OEM) ?