My buddy swears by his big meaty aluminum baseball bat arrows. Likes the knock down power he says. I am shooting carbons and my bow is really quick and honestly don' t see the advantage of having " knock down power" . I mean, we aren' t shooting buffalo. So I ask you, what' s with this knock down power if you have a sharp broadhead that will go clean through a deer? Not being a smarty, just wondering why you prefer the heavier arrow. Heck, maybe you can answer your own question by answering mine.