I am setting up a used set of Hayes Nine's on the front of my bike. I can not get the rotor to stop rubbing. I have pried the pads open with a screwdriver, I have loosened the mounts spun the wheel and applied the brake then tightened the mounts with the brake lever squeezed, I have done the same with the two other allens on the caliper. The best I can do is get the wheel to spin with only a little rub but as soon as I apply the brake the rubbing is worse again. The wheel will not spin. Are the pistons sticking? I have no idea what to do next. Any advice would be greatly appreciated.