I don't really know the geometry of a Pompino but I imagine it is sensible and it definitely takes mudguards and has a full set of bottle bosses (something sadly lacking from my track bike) so seems sensible.
Pompino is pretty much a classic road geometry (73.5/73 angle with 45mm rake fork).
Personally if I'm doing distance fixed I want road drops for the variety of positions available which help deal with fatigue and many hours with your hands on the bars, they seem the obvious choice but I guess bullhorns would be fine if they work for you.
Don't forget the rear brakes, extremely important.
I'm sure there are people who can do 300k with just the front*, but it's definitely easier with both brakes.
*someone ON HERE did the 1400k LEL on a black Langster with bullhorn bar, baby blue velocity deep v rear wheel, single front brake and the LFGSS jersey.
Pompino is pretty much a classic road geometry (73.5/73 angle with 45mm rake fork).
Don't forget the rear brakes, extremely important.
I'm sure there are people who can do 300k with just the front*, but it's definitely easier with both brakes.
*someone ON HERE did the 1400k LEL on a black Langster with bullhorn bar, baby blue velocity deep v rear wheel, single front brake and the LFGSS jersey.