RE: Jo jan multifletcher....
I've been using a multi-fletcher for about 10yrs now-great tool! I've done everything from carbons to 23/64" cedar shafts and it works great on all of them.The clamps have no hash marks so before I started to fletch,I decided how far from the nock I wanted the feather and put a mark on the clamp(all six).That way you know exactly where to put the next fletching.
If you're not using a fast-setting glue,you can glue up all 6 at a time but I usually load all 6 clamps with feathers then glue 1 at a time and set on the shaft.Once it's set up,it's a quick and precise tool.