Yikes...that's a little unsettling at first. But I have a buddy at the Mazda dealership down the road who has the M-MDS so that'll be easy enough. BTW, I finally received a response from H&R and like someone else stated, they said to use the stock bump stops. But I'm going to just grab the ones from 5X like you suggested. I noticed there are 3 different hardness levels (soft, medium, hard) for the rear stops, any suggestion there?