I shoot 4" vanes with wicked left helical. They work well for me, going to go to a 3" on my FMJs though, tough to get the 4" to stay on with lots of helical on that super thin diameter. I used to shoot Blazers and had good luck with them, they stiffer so less flex when shot, thereby stabilizing faster. The Quickspins do get the arrow spinning fast, but I guess the difference in my experience is minimal when compared to a standard vane. Plenty of choices now that's for sure!