Im running the RDA7686D slotted, replaced back in Dec last year, so i have done around 20000 kms on these brakes and disc. might be the rotors more than the pads than, as the rotors had
a big groove in the middle, and when i was braking hard i could feel a little wobble down the steering wheel, plus when in stop go traffic all i could hear was the squeaking brakes, so got the rotors
machined now the wobble is gone but they are still squeaking .
Thanks