I've been using a Bitzenburger for several years, and am happy with it--but they aren't cheap. I have heard a lot of good things about the BPE Pro, and have one ordered for myself--around 1/2 what a Bitz costs. Be sure to remember what CT said--right helical clamp, right wing feathers, left helical, left wing. If you get a straight clamp, you can use either, but at best you can only do a slight off-set fletch.

Chad

Long Bows Rule!