i know for sure my arms get tired quickly because i can't get the seat back far enough. great for sprinting and climbing (i presume because it's made for sprints, not long distance. when i stand to pedal i'm not very far off the seat haha). I should throw my aero clip ons, that would probably be pretty nice.
i really like the feel of it though. i'm sure i screwed up the handling a little by throwing on a fork with too much rake (think it's more like 40ish rather than the 30ish of the stock). handling isn't too squirrelly though, and it eliminated any chance of toe overlap
also surprised on the njs cert of this strange geo, but i'm sure it's for a certain type of race. I saw a samson on sffixed for sale that had very similar geo to this (near vertical seat tube). dunno if it was brazed or not (maybe for the bb and seat collar just because of the steep angle? not sure how lugs work with that part of the geometry.)