The way I have always been explained campy vs. shimano is that the two are offset. Record then DA then chourus then Ultegra and so on and so forth. so with that said I would go with the DA. but really it should be the rest of the bike that is the deciding factor. its easy to make a good frame better its much harder to make a bad frame better
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Rams Cycling Team
'06 Cervelo Soloist Team record, '04 S-works epic sram and king equpied, '03 litespeed hyperion DA/Ultegra 10sp