So I just called a reputable mechanic in Seattle who deals with only Subaru, and they told me that they will not do just a brake pad replacement on new models, but require to do the rotors as well. They say that the Subaru rotors are so thin that they will warp easier after they machine them, and in their opinion they are ripping the customer off by just doing the pads. Are they blowing sunshine up my ass or is this a legitimate concern?