Like I said above, I ride with a lot of people who I'm perfectly comfortable seeing in the TT bars in a line, even if we'll never ride a TTT or TP together. And I know plenty of people with drop bars who I don't like to be in a line with.

For the record, I don't do TTs (except the occasional TP) (or tri's--ick! running and swimming? No thanks.)-- I'm mostly a mass start trackie, but I see the sweeping generalizations everyone is making and I think they're silly.