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Re-surfacing rotors?

Brakes

Vehicle Information: Year: 1999; Engine (type, size, modifications): 2.5; Total Mileage: 42000; Transmission: Manual;

I recently replaced the front stock rotors and pads with cross-drilled rotors and Hawk sport pads. I was pretty happy with the improvement in braking. However, shortly after the installation I went to a DE at TWS and have since been having vibration problems under braking which seems to be most noticeable under light and heavy breaking (but strangely less so under moderate braking) and I suspect that I've warped the rotors.Since the rotors are nearly new (~1500 miles), is it ok to re-surface the them (provided that they are still above the minimum thickness of course!) or will I have to replace them?I've read that racing brake pads can reduce the potential for warping, but since the car is my daily driver I wasn't keen to go for anything that was purely for the track. What are your thoughts on this?Lastly, if I do need to replace the rotors again, would I be better to go for a slotted rather than cross-drilled rotor? I've read enough to thoroughly confuse myself on the issue!

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