I raced with a VX short cage. The Campy boys in the pack in the pack laughed (sometimes literally), and my Superbe-equipped teammates took gentle pity on my "plight". But that thing shifted reliably every time it needed to, and was only a trivial weight difference from the far more unaffordable componentry. Great derailleur - which is what you can say about nearly every rear one made by Maeda (although the plastic cage on the Alpha 2000 on my commuting bike is fixin' to fail soon.)