2013 LR4 - 41k now. I bought this lovely beast with 24k miles on it and the brakes were a little chirpy then. It's been getting a little be more pronounced as of late and even chirps at highway speeds. There's no feeling of warped rotors or drop in response for stopping but the chirping/squeaking is getting worse and more frequent. It's really more of a nuisance and slight embarrassment rolling into parking lots, stop signs, in/out of the garage. Should I wait for the pad sensors to fire off or do I bite the bullet and chase down doing the replacement before the sensors burn up?