Can anyone tell me what the advantages are to helical fletching vs straight and so on. I' ve been fletching straight at a slight (3 or 4 deg.?) angle but have a buddy with a dual cam patriot that fletches straight (I know his setup is alot faster than my stalker).

I' m shooting 28" gold tip xt7595 at 65#with 100 grn tips through a wisker bisquit. I will however switch to a fallaway if I ever make up my mind on which to get.

Thanks for any advice
Kirk