If you have the money for either a whole new wheel, or the hub and possibly new spokes, and a fixed cog.. I'd say get the Profile. With a 1.5 ratio, you get 72eps with them, which is the same as ENO's - I think... Anyway, you get pleanty. And I'm not too sure about the ENO, but when Profiles are 'bedding in' they do skip. But I got mine 2nd hand, so it's already bedded in, hasn't skipped at all But if you can't be arsed to spend that much, go for the ENO, or wait 'til April (?) and go for the Tensile Front Freewheel