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					Originally Posted by  Kevin M
					 
				 
				Have you looked into changing the master cylinder Scott? Maybe higher pressure per pedal travel will help. 
			
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 I'm pretty sure it's the 1/8" of flex on the sliding calipers that let the pad surface move around all over the place.  It's so bad that the pads will sometimes end up against the center-hat of the rotor and grind/squeal like the world is ending.
I thought I had some bad/worn calipers, which is why I ended up replacing all four corners... and the new ones are exactly the same.