Originally Posted by tellyho
Definitely n-1. Don't know why. Someone on the forum is actually of an n-2 persuasion, after having a problem with n-1.
"n-1" is correct for hubs and BBs. "n-2" is for headsets - taken directly from Barnett's Manual. So, it's not just "someone on the forum".
Hubs and BBs have, pretty much, a constant rotating motion, whereas headset bearings are not moving around much at all. "n-2" introduces a randomness to where the balls position themselves to reduce the occurence of brinnelling.