Do NOT USE Vittoria Formula Uno tubulars! They SUCK! I only paid twenty dollars a piece for them but they didn't last any time at all. One of them went flat only after a couple hundred miles and I attemped to repair it and the tire just fell apart. I do have an older Formula ONE tire that seems like it's better quality but I just use that one as a spare.
I got a good deal on a pair of Clement Tipo tubulars. The mech at the pro shop where I got them at says they're much better quality. I think the high-end Vittorias are much better quality but they are alot more expensive.