I make around 6-7k miles a year and I don't track the car.. it's my daily driver..
If these rotors will hold for 30-40K miles it's goos enough for me. I paid 250$ for 4 rotors + pads.. honestly 250$ every 5-6 years is not a bad deal for me.
Also I got posi-quiet ceramic pads.. which are supposed to be very low dust. I know performance is not the same, but for daily driver in city traffic.. it's good enough.
Thanks for the tips about directional vanes.. now let's hope that I won't mix rotors for RX330 and boxster ones
Thanks for all the advices.
Sasha