Very odd. I have two, and all the rods fit very precisely. Definitely call Spyderco. Their customer service is superb. I dropped a knife in a parking lot and it broke. Freak accident - it was clipped in my pocket, got snagged on the door frame walking into my motorhome and fell to the ground. They replaced it immediately, because Spyderco knives aren't supposed to break. In fact, they gave me 2 knives because the broken knife was long out of production, and cost twice as much as the current production similar knife.
Kevin B.