Not to nitpick, but .... bigbulls,
Vanes can be up to 700% heavier which means that it requires up to 700% more effort from the vane to stabilize the arrow. What is easier to throw, a one pound ball or a 700 pound ball?
1 lb. times 700% = 7 lbs, not 700 lbs.
[:-]
That being said, I have shot feathers almost exclusively for over 20 years (man I am getting old!). Everything Arther said is correct. I have tried various vanes a few times and always ended up hating them for one or more of the reasons mentioned already. I am presently giving Blazers a try, and I can say that there are some advantages in their corner, such as they are quiet in the quiver and are very tough. I will say that from my experience so far, they don't stabilize a fixed blade broadhead as good as 4" feathers. They do, however, appear to stabilize plenty good enough with a well tuned and spined arrow. I have shot through a fairly tight styrofoam target several times and they don't rumple up like some other vanes would. Our season opens in about 20 days ... will I be using the Blazers or feathers? Not sure yet ...[&:]