I'm coming up on 145k miles and I'm needing to replace my brake pads again and possibly replace my rotors. The last time I did it I had to turn the rotors due to slight warping and wear. This time I am contiplating replacing all four with drilled and slotted rotors. Has anyone repalced theirs with this type of rotor and if so is there a heavier duty one over the other. I pull a 30ft toy hauler so I am looking for the maximum braking capability.