The major difference is atleast to me, the primary position of flat bars with bar ends is the flats, while bullhorns you'll run on the actual horn parts most of the time. You should use a shorter stem with the bullhorns than on the flats. Which means that the flats of the flat bar will be farther away than the flats on the bullhorns.
Raising your stem I'm sure will help. Up/Down seatpost height you should be able to fix easily. Fore/Aft Saddle is something you have to work with a bit more.
Oh yeah anyone who is doing 20+ miles a day at one time, invest in some bibs and some chamois lotion. Under that you can get away with soome shorts.
Last edited by Learn_not2burn; 10-02-06 at 05:15 PM.