I recently acquired a Yard-O-Led Perfecta Victorian pencil, presumably new old stock from the Filofax days when Yard-O-Led products were more widely distributed in the United States. It came with the 12 extra leads already in their holding tubes. Some of the extra leads slide out easily, but others are firmly stuck in their tubes. Does anyone know a way to dislodge them without surgery? Vigorous shaking hasn’t worked. It isn’t really such a big deal, but why not "go the whole one yard" if possible?