Actually,
Gordy Mickens and Jim Neaves,have done extensive studies on the effect of crosswind,on 2 fletched arrows.They concluded,that the 2 fletch drifted less than the 3 fletch.Like Jim says,about his setup.I only have a 25" draw,so i cant afford to give up any performance in my setup.He has used 2 fletch exclusively for the last few yrs,for all his big game kills.I cant count how many times,i have had people look sideways at my arrows.Even had em tell me,they wouldnt fly worth a damn.Gotta love that,when they have never seen em fly.I generally leave em standin there,with their jaw dropped n speachless.LOL
We're not talkin bout a Native style 2 fletch here,but 2 parabolic feathers .One on each side.Off set,with minimal helix.