Rebound valves.
 

I have been playing with the valves in the shock and I feel that it works better at the top rather than under the pistons. Does anyone else have any ideas?

Depends what you'r elooking for a guess Stu. I never reall played with them. It was one of those things that i intended to do, but never got round to it.

Although to be honest i think the std ones are "too hard/thick" personally.

If you think about it logically, you would want it to go slower up rather than coming down?

Stu, when I was using the X10 the car handled bumps better and "landed" from the jumps better (didn't bottom out as hard!) when the valves were on top, but then outdoors at southport the car felt better without any valves in the shocks at all.