If you mix it with the Schulz video and you are having trouble hitting as far out as you would like, read the book and then with some work find that a longbow can indeed be accurate out to point on ranges, You may have a completely different idea of the value of the information. However, if you are a grip it and rip it close range only snap shooter and that is the only way you can shoot, perhaps it is the best knowledge you can learn, but you will have a tough time changing.