How many people have ever heard of, or go by, 12 - 15% on arrow weight forward with broadheads? You measure from the nock where the string bottoms out, and from the other end to the insert where the broadhead threads in. Let's say it's a total of 29 inches, you divide that in half which equals 14.5 inches. This is the center point for the arrow. Then with the broadhead on the arrow you take and balance the arrow on your finger. Mark that balance point (I like to use a pencil) and measure from the insert to the balance point. Let's just say that distance is 11.25 inches. Subtract 11.25 inches from 14.5 inches which gives you 3.25 inches. Divide the over-all total which is 29 in this case by 3.25. This gives you 11.20% which doesn't fall in the category of being 12 - 15% for broad heads. So, my question is, has anybody heard of or does anybody go by this standard of broadhead weight forward of 12 - 15% and field points of 7 - 9%? I read this on a site last weekend. Some input would be greatly appreciated.