Someone posted the other day that they were finding their ride harsh so they wound their preload up not down. Their feeling was that the suspension was bottoming out and needed more support. I had been getting those nasty jolts up the spine and was thinking to soften my suspension but that post made sense to me. So I turned my preload up to the max too. BIG improvement. No more jolts and the bike seems more planted. I'm 93kg so as the OP said, this suspension was designed for lightweights. I can see now why Boris says in his review that the only thing he would upgrade on a Valk is the suspension: