I ride by 450 100% on trails and have installed race tech springs in the front to match my weight. The previous owner says that the forks and shock were also valved prior to him getting it so I have zero reliable info on what has really been done. My issue is with the forks, this time of year and the trails I ride are real choppy right now with small sharp braking bumps and water ruts and after about 5 minutes my arms turn to jello to the point where I can barely twist the throttle I know part of this is me and my poorly out of shape self but the fork feels really harsh on these small bumps. My first thought is to slow down the rebound, but I would love some insight in what direction I should head with this. I really don't want to sink money into the forks right now but I may have to re-valve them. Also when sitting with no loud the front forks sag about an inch which I have never noticed before, my buddies 08 yz450f does the same thing so I think it is normal but unsure.