huck norris works as advertised, really reduces the impacts on rocks. ran it on the back of my HT, which i run pretty low air. downside is the really hard impacts will cut the foam right thru. so after a season there's a handful of places where if i hit again it won't do anything.
looking to go to something that lasts longer and reduces impacts even more. i would try cushcore if not so $$$. maybe the vittoria next?