Fletch,
I do not believe you will be happy w/ an Arizona E-Z Fletch. It will work great w/4 and5 inch vanes but I tried it w/ the Blazers and it does not put an offset on the vane. The Blazers are too short.
I use a Greyling fletching jig. It's fully adjustable for offset or helical and not real expensive. It will allow you to experiment w/ the correct offset angle for a WB.
Granted you put 1 vane on at a time but if you use AAE fastset gel it only takes 5-10 seconds per vane.