I have the slight vibration but if you do a search some have been linked to the bolt that holds the lower control arm. Over time it gets loose and you get that vibration now this can be masked by warped rotors also....I went through 4 sets from the dealer with in 16 months and then i finally had enough and looked and found the loose bolt. However after tightening that bolt and putting new rotors and pads i have vibration when accelerating or just driving nothing to do with braking anymore. So the only thing i have not changed is tires and balance and ive changed control arms and bushings ...so ill have tires soon so we will see. but definitely check that bolt.