I'd be curious if the aerobars/drop bars ratio has changed since the TT was dropped from the Olympics. I know that on the men's side, many guys just do the kilo at the WC's without specifically training for it like riders did when it was an Olympic event. Same on the women's side? Maybe that extends to equipment preparation? Anna Meares always rode aerobars for it, but I can't find any videos of the 2004 Olympic 500 to check the other riders.