Blazer work great on carbons. I have tried smaller higher profile vanes and feather on aluminum's and they didn't work very good. I think it's not the weight it's the size around that makes the difference and that the fact that carbon arrows straighten out faster coming out of the bow. They say it takes about 15 feet to 20 feet before a aluminums straighten out. The vane don't haft work as hard to straighten the carbon arrow out as much. I shoot them with a fixed broadhead and they shoot like bullets and my groups are great.