ORIGINAL: Straightarrow
One thing about helical, it's either all or none. A given helical clamp can only attach a fletch one way to your shaft. There is no adjustment. To change the amount of helical, you have to change the shaft.
I resprectfully disagree with that statement.The bitz is adjustable. The clamp has acertain amount of twist, which is not much, but adjustment of the jig is where you get more twist. I never put this hard of a helical on arrows. Even though I use EZ fletch grayling, and bitz. Iusally only use the EZright helical.