Hey WBowhunt. Years ago I bought a jig and saw kit to cut shafts. It came with a thin bladed hand saw and a jig to measure and hold the shaft while cutting. It works well but I imagine that it is not as consistant as a high speed abrasive saw. The cuts were square to the shaft and the inserts seated properly. I do not see them in Martin's website but it doesn't hurt to ask. The base of the jig has the word GEM right beside the patent number.
Good luck.