was contemplating which upgrade to give bike (new fox 38, new "x2" dampener or tune the current "fit4") came across the "MRP Lift" and decided to order it. Once installed left setting in middle, go for a ride. After a few down trails i open up compression but it was still too firm. Once i got home i opened " Air spring" side and see it has 4 spacers, i take out 2 go for another ride with with 5 psi less. This ride was perfect nice and supple in the beginning and lots of support towards the end stroke.
Then i take bike to Kernville CA to ride the " Cannell Trail" dampener was great didnt loose dampening this is where i truly felt the difference (nice long descents)