i just got an American Classic 10 speed cassette for my Hed 3 wheel. I have seen some literature that says these cassettes are not compatable with Campy Permalink chains, which doesn't really make sense since these cassettes are for 10 speed campy drivetrains. Anyone have any experience, as I don't feel like dropping another $50 to buy a Wipperman (only 10 speed non-campy chain I know of), since I already spent $500 on a wheel, $80 on a cassette, and $50 on a tubular....I really must be crazy.