UFO Sightings?

[Derek Pulvino]

Hey all,

Has anyone heard of someone selling, or know of a good source for used UFO 
rotors?  I'm getting ready to change front pads again, and noticed I've 
gotten a little bit of metal on metal on the outer say 15% of the inner 
braking surface.

I wouldn't worry, but as best I can tell, these are the original rotors that 
came with the car.  The car now has 230k on it, and the rotor seems to be 
getting a bit thin.  The other part of the question would be, does anybody 
know if there is a minimum safe rotor thickness I should be paying attention 
to?

At the rate I'm going, if I stay with these rotors, I may wind up with 
slotted rotors before the next front pads.

Derek P