I just fletched up my hunting arrows with some NAP QuikSpin vanes and went out and shot them. I have to say I am impressed with them. I shot VERY tight groups tonight with my broadheads (85 grain thunderheads with practice blades), much tighter than in the past. After 5 minutes of shooting out beyond 30 yards I have to refletch a couple of arrows and replace a nock on another....I think I'll leave the setup alone. Although the vanes are more expensive than others I think they live up to the claims that NAP makes about them.....better than feathers too. I'm not sure how durable they would be shooting through a whisker bisquit type rest though...I use a drop away rest instead