it's a personal thing, this non-feather fletching thing. back in the 50's and 60's i used plasti-fletch hard vanes, and then flex fletch, spin wings, and kurly fletch, and numerous others vane brands and types who's names are long lost just as those vanes are. none were for hunting, they were mandatory for target, just as they are today for the paper punching games. these "new" vanes are prolly just another passing fad. i'll stick with feather fletches on my hunting sticks. ymmv.