I don't get it. If you are shooting within 20 yards, what is the extra control going to buy you? Maybe it stabilizes flight faster, but at that short of a range, I would think that it doesn't matter. Maybe out to extended distances it could correct problems with your form, but out to 20 yards I would think 2" blazers would do as good of a job as 5" feathers. Plus, they're weather resistant, quieter, and more durable. If my field points and broadheads hit the same spotout to30 yards, I see no need for big feathers.