coke does work, but if you have some alcohol wipes, wipe the tuffs down and the pads thoroughly first, this removes any greasy film left from manufacturing of wheels, tuff pads take a while but will wear in and work great, dia compe pads work better than tuff pads on tuffs also the cheap odyssey pads work really well on tuffs and wear in quicker. tweak n try dude, then apply coke (not diet) and your brakes should be coolio