I understand the feel of the truck. I know what the thickness of shims that I have is. .010, .010, .012, .012, .012, (for rebound) now I am wanting to increase the speed of the rebound, so the shock will rebound faster. So do I accross the board go thinner, with .008, .008, .010, .010, .010, or do I change just some of them, like the smallest three, down to .010 Pretty much where I am coming from, is I an new to rebuildable shocks, I was pratically born in the desert, but new to the racing scene. What it looks like from the FOX chart, if you want to increase compression or rebound by 5% or 10% or 50% this is the shims that you would need to run.