[!Gn|T|0n]

I've read conflicting opinions on the effectiveness of machining slotted rotors. tufLTD, would you explain to me the difference between machining and surface grinding? Does the former use a wheel / flat disc and the latter a blade? Essentially, they're no good the way they are. I do not drive the car hard. It either lives in the garage or does stop start driving to and from work for the majority of the time. I avoid driving through puddles when the rotors are warm, wait for them to cool before hosing them when washing the car... basically I treat them much better than the average person I'd wager and still they've done me wrong after.