I'm not proposing that a pellet gets re-machined, rather a pellet is produced from lead wire on cnc equipment. It may require a more machinable lead alloy than pure lead.
Dan
There was a Japanese made pellet a few decades ago all machined by lathe. Unfortunately i forget the name.
I reckon JSB became complacent well before 2006 and never had a good batch since 2003.
Bring it on a new supplier i would be interested in trying and testing.