OMG... don't tell the putz... I think I have one of these... bought it quite a few years ago for my Beall wood threader,

It was the only trimmer that had micro adjustment as well as those crappy rack & pinion (that always keeps missing the mark).
However, I suppose this doesn't help your dilemma.

If your first cut is too short... Take the second cut from the longer end... LBD