Ok, but why is it better? The Jo-Jan is all metal, very simple, and you can do 6 arrows (one fletch at a time) at once, then either 3 or 4 fletches per arrow by turning a knob until it clicks into place.
Didn't mean to imply that the Bitz it was better then the Jo-Jan. Just meant to say to getone of thebetter jigs. I had a jig once that fletched all three at once, it was plastic and you had no adjustmenton it. Couldn't do a four fletch, couldn't change the degree of helical to match the shaft, etc. Sent it back after trying it a few times. Bought a Bitz and have been happy with it for years.