[The 4 Winds]

RE: "They do how ever seem to be wearing very quickly, and like to pick up gravel"

While $103- per tire sounds an excellent value, you should consider upgrading next time to BFG ATs'. I would think these would wear much better, have a better grip and offer add'l protection of a triple side-wall. Cost savings would be negated over the long-haul by BFG conservative wear.
bruce boycks, SoCal