Changing my 4 brembo rotors (Brembo rotors and pads) at the.moment for DBA 4000 slotted rotors and ferodo ds performance pads.   I'm stuck at taking the rotor off. I put some WD40 on the studs.   do I have to do anything with the handbrake pretensioner?   Can I just wack the rotor off with a larger 3lb hammer?