Was in a bit of a pickle with how to attach the nose bumper, and on the point of asking on a forum, when I thought to check the Long-Ez plans. Or rather, the Open-Ez plans. An explanatory note that never made it into the otherwise identical Cozy plans reveals all. Despite the crappy diagram the half-puck goes on vertically! I have seen plenty of sites that stick it on its side, and actually don't think that is a problem, but I will do it in accordance with the note I found, reproduced below.