Prior to the 1995 PBP we (on behalf of AUK) sent ACP a sheet with several sketches of possible handlebar configurations, for their comment. Included were bullhorns, straight bars with extensions at the ends or inboard, short and long tri-bars, butterfly bars, I think there were 8 sketches in total. They returned the sheet with all the sketches crossed out except the standard road drops.
That was then of course, things have obviously moved on since. It was probably one of those situations where it would have been better not to ask the question.