there are alot of old designs out there that are absolute rocket ships. A few examples were the old thommens, one real one dimensional shape comes to mind: mistral energy circa 1996 . All fast but need attention. Thick rails with lots of volume througout the whole board. The energy was a real one hit wonder , fast slalom board, killer in a straight line did nothing else well even passable IMHO especially gybing, the thing was a bastard to gybe.