early in

What is the differance between helical and off set vanes?

BGfisher

A helical fletch wraps around the shaft partially and has a twist to it. Better for broadhead flight.

Offset refers to the vane (feather) being fletched with a straight clamp, but offset a few degrees. Also good for broadhead flight, but not as good as helical.

early in

Thanks BGfisher, I didn't know that. Since I got my Vectrix I'm getting into the more technical aspects of tuning that I didn't pay attention to before.