I just got a Sage 2 for my birthday (hell of a gift) and it's predictably awesome, though there is one thing bugging me. It sounds really "chalky" when opening/closing, as if the ball bearing on the lock bar is generating quite a bit of friction. Anyone have an idea of a fix for this? Lubricant? Graphite? Cycle it a thousand times? Any help is appreciated. (Tried loosening the pivot screws to no effect.)