I assume the TdFers are using some kind of tubulers, and I read somewhere they got a new set every day. So, how come so many flats? In the TTT didn't Julich (Credit Agricole) flat (not that it hurt them much)? And didn't one of Telekom's riders flat as well? Then today, stage 8, Vinokourov (Telekom) flatted out of todays phenomenal breakway.
Is somebody throwing tacks on the road? If not, I think I'd sacrifice a couple of grams and get a tire that would consistantly last, say, 100 miles.