Which fletching jig will give me the most helical?
I use a BPE, and I get a very strong helical.
Bitzenberger provides plenty of helical. Arrow diameter is a limiting factor. A skinnier arrow requires less helical to get good feather to shaft contact.
I get a pretty radical helical with a Bear Paw.
(http://i1202.photobucket.com/albums/bb363/richierm/DSCN5579.jpg)