I have been riding Open Pros for sometime now, wonderful rims. I beat the hell out of my rims and have had equal luck with DT Swiss rims and Open Pros, but the OPs weigh less. As for Velocity rims, I have actually never ridden a pair but have seen a couple pairs of aeroheads seperate(sketchy). If you do lace up some Velocity rims, just dont lace up some Deep Vs(aerodynamics really are not that cool).