good guys and a good process, make sure your not under the minimum specs before paying postage to send them

Exactly.....you only have .5mm on each side of the disk to play with. This resurfacing process seems more like a way to smooth very light grooving, by my experience once you get heavy grooves you will be under 4mm by the time you smooth it out. I guess I just dont see the purpose, light gooves dont really affect braking, and any process to smooth the rotor HAS to remove some material. Theres just not a lot to spare here