Think outside of the box. Most full length cues you are only cutting the save the butt or on rare occasion the shaft.I have a metal cutting band saw that can drop down and cut a 57 inch cue in half. But cutting a one piece cue in the middle on a normal band saw does not compute to me. I cut 30 inch shafts in half on my 16 inch band saw to make coring dowels, but not sure how to reach that middle point on a wood cutting band saw like most cuemakers own.
Most of the time the shaft is so warped it's kindling for the individuals living in a cold winter state.
If you are trying to save both halves (which I'm not sure why) just cut on an angle. Face both halves off.
Takes 5 seconds to whack one in half.