For all 996 owners, wanted to know how many miles you get on your pads and rotors both front and rear. I drive my 996 everyday and have about 16,000 miles on the pads and rotors and they seem to be worn out. Does this sound right or maybe the porsche tech friend that does the work on the brakes for at no charge is doing a sloppy job. Could the breakes wear out faster if not done properly? Should I just drive on them until the warning lights come on?