[landrovered]

The article did not offer any advice on when to change the rotors it merely made the point that the discard thickness was based on caliper travel not any criteria that had to do with warpage, heat, or strength of the disk.

I understand why, if the disk is worn then there is still a friction surface to stop the vehicle, the rotors will get ruined but the car will still stop as in the case referred to where the disk was worn to the fins. If the caliper piston pops out then there is no braking system at all.

I agree a lot of trade mags are there to sell stuff but there is also a lot of good info there. If you are trying to provide a good service then you will, if you are trying to sell nitrogen to put in peoples tires then you can find that crap as well.

I believe that return customers are the best reward. People bring their cars to my shop because they trust me. Why would I want to foul that up for a lousy benjamin?