Tim, only problem is I am playing with Thornton rear springs, had them for years but never got round to trying them, hence no spring claws, I am trying to dispense with the small right angled brackets and velcro though as these items do not sit well with me, I am trying to benefit from the built in pre load of the Thornton springs, not to be confused with the ride height, I think the system Marcus designed is adjustable for ride height, but does not start of with any preload, I think most modern suspension systems recognise that a degree of pre load is an essential part of a good suspension system, that should put the cat among the pigeons!