My 2005 M1 seemed overly stiff to me until I took out the booster spring. I'm about 160 lbs and I typically ride with a pretty heavy backpack (mostly solo rides in unforgiving terrain). I didn't check my sag before removing the booster, but now it hits the manual numbers perfectly. I run the SPV chamber at full volume and 30 psi. Now I really like this fork.artsn said:My Minute 1 feels really notchy not very smooth. I noticed it when I directly compared it to a Talas my friend was riding. Its a 04 but it has the 05 Evolve damping. Anyone have any tips to getting it to feel a little more buttery.