Shock valving.
 

Good question. In my case camper valving was done before installation. It's bound to be a bit stiff when I take the camper off for bi-annual servicing. I had a competitors' system on my '99 which was a basket case,swaying all over the road until Sean volunteered to revalve the rears. He's pretty knowledgeable. In less than an hour,the performance of the shocks were demonstrably enhanced.

thinking deaver and kore have some sort of deal. the deaver web site sends you back to kore, at least it use to.

lorenz went through a couple places before he came out with the product. did not ask who, not sure I care that much. thinking that will raise some eyebrows with this post. I will ask it if is that big of a deal.