I dont know about what they fly like with regular vains or feathers but they have been greatly improved by going to blazers. It is well documented that the more helical a arrow has the better it flys with broad heads because it keeps the head spinning instead of catching air. I was just wondering if you can do helical flechings with a blazer vain on small diamiter arrows. I will be usinga jo jan flecthing jig. thanks for the help.