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Spending a bit of time balancing the pistons really helps. Use a flathead behind the pad with more clearance, holding back the pad with less clearance, and pull the lever slightly. You're aiming for both pads to strike simultaneously, and with equal visible clearance. When you get it just right, the rotor "pings" when pads hit. My RX4s don't rub at all.
Thanks, I'll have a look at this as well.
Spending a bit of time balancing the pistons really helps. Use a flathead behind the pad with more clearance, holding back the pad with less clearance, and pull the lever slightly. You're aiming for both pads to strike simultaneously, and with equal visible clearance. When you get it just right, the rotor "pings" when pads hit. My RX4s don't rub at all.