I read "Old Smoothie" Brown's site. Technically, if the cone & locknut are locked against each other and if the axle spindle is of sound material there should be no compression from the QR no matter how much you overtighten it. The QR should strip out before bearing drag/lock. What typically happens is folks run the cone up to the bearings, back off a smidge and "then" lock the nut--- rather the two need to be locked together in opposing motions, using proper tools. They will not and cannot move inward to the bearings unless soft materials or wear is about to cause otherwise. I am well aware of bad cone adjs. dragging and forcing friction... been there many times myself. So while I don't dispute that it never happens, there are meny fine hubs that this worry is of no concern. Cheers!