First off, yes I searched, but there's really not alot of info regarding mds on the '18+ bearing clutch. A few guys say they're great and others say stock is just as good. My brother has a '14 162" stock with just mds clutching and it runs really good. It'll run side by side with my '20 165" and would pull away from my '14 153" with jaws pipe that I "thought" ran good. Just wondering if I could expect similar improvement in performance on the alpha with mds to what he gained on his '14. Oh yeah, we ride 6-9k, spending most time around 8k.