Feathers Vanes Broadheads and the Biscuit
I' ve shot straight fletch, helical, offset fletch, and Turbonocks through my biscuit and they have all worked well. If the bow is tuned and you use the correct spine arrow and the rest is adjusted for the narrowest group all styles of fletch will work. I shoot fixed broadheads 15grains lighter than my fieldpoints and they hit the same hole. I use 4" straight Duravanes and the fixed heads go straight. If you are shooting light shafts stick with light heads like 85grains, heavy shafts will do better with 140 Muzzys than with lighter heads. Match the spine to the bow and match light heads with light arrows and heavy heads with heavy arrows. Everything goes pretty straight with the biscuit so I don' t use more than 4" fletch. Good luck hunting!