i cant stop the rear from screamin like hell ive used copper slip ruffed the pads up and still nothing ive evan swaped the pads round PLEASE HELP its fuking embarrising :x
Not necessarily. I filed mine down at a 45° angle, which ony made the contact patch 3-ish mm smaller.
Can't say I noticed a loss in braking power, but I certainly noticed that mine don't squeal anymore.