If you use tape there is no reason to have more than 1 jig. There's no down time waiting for glue to dry/cure. Tape a fletch, then immediately tape the next and so on. I've come to really like tape.You could mount them on a lazy Susan and have a convenient production station. But the bow shop I go to has a dozen mounted to chunk of MDF shelving - using double-stick duct tape - so he can knock out dozen-shaft orders at a go, so I guess a lazy Suzan isn't really necessary unless you have space considerations.
Plus, it's a lot easier to repair or refletch with tape on carbons. Glue makes it a little sketchy to scrape the old stuff off. Not an issue with aluminum shafts but carbons can be damaged trying to clean up the old fletch and glue.