Interesting thread. I've also had problems with bushings/mandrels not being consistent in size. A set of 4 bushings I had recently had three with identical i/ds and one just slightly smaller.....enough to make it not fit ont he mandrel without some tweaking. I bought the Axi saver, but the mandrel didn't fit so it went back.
So....I've just got the Chronos saver, arrived today. I also got a 1/4" reamer and a length of 1/4" silver steel bar. I've reamed the bushings and needed to ream the saver a touch, but now everything fits like a glove. Perhaps now my pens will be round! Or at least if not I can stop blaming the equipment.....
