Hey guys I have a Scott scale 930 carbon that I just bought used and I pulled a rookie mistake and screwed up my rear pads with a degreaser. Squeals terribly and loss of brake force even after sanding the pads. The rear brake is a Shimano slx br m675 and the rotor is a SM-RT54S. Pads and rotors are inexpensive items so I would like to upgrade both since my pads are shot anyways and I fear that the rotor has on it whatever screwed up my pads. So my question is what is the absolute best rotor/pads combo I can get for that slx br m675 caliper? Thanks for any info.