I currently use an arizona ez fletch but was considering getting a jo jan multi fletcher. Seems like a bunch of people use them so I guess I'm curious. How do they work? I see the clamp, so I assume you glue 1 vane at a time, but how do you know where to put the vanes? I guess you glue 1 vane on each arrow, then go back and glue on another.... Anyway, just wanted to ask a few questions before I deside to buy one...Thanks for the help....