There actually is an odd case in which the performance numbers might change - obstacle clearance height. The area that is surveyed for obstacles extends out in a narrow cone. When this cone is moved back, it is possible to "capture" an obstacle that was not considered from an intersection departure. I've seen the engine-out acceleration altitude increase 20 or so feet when using full length vs an intersection. Not much I know, but it could be one of those "gotcha" things if you have a check pilot or FAA-type on board.