On the PM1440TV I turned a short barrel on centers, dead one on the TS, cylinder was spot on end to end. Replaced the dead without moving the TS position with a live.
A couple of heavy cuts and a finishing cut, not as bueno. Still good enough, but would rather have it just the same as the dead.
I did learn sometime ago to cut to specific dimension I let the material get back to room temp before making the finish cut or two.