I have an 02 Sugar 4 with a Black up front (I believe it is the Comp model) and the rest at XT level. A mechanic at one of my LBS' said that the rebound adjustment was not working, and that the rebound was the same even if the adjustment knob was moved. Is rebound adjustment really that important, and is there an easy way to fix that within the shock? I do like the bike a great deal, and even though I would love to get a new Turner 5 Spot or a Titus Switchblade or a Blur, I could use this for a while. Is a front fork upgrade worth the money? Thanks as always for any input.