Greetings,
Karen has a pretty good article at cyclingnews.com, in which she laments about her FRONT flat, which was replaced by a wheel that didn't work with her brakes (too narrow, maybe?) and that it cost here about a minute and a half. Just like having an old Mavic SSC and replacing it with a Fiamme Yellow Label track rim... Mari Holden later had a rear flat and she did have a problem with the gear adjustment.
Tailwinds,
Mark Ritz