Thanks for your response and I agree with heavier head and arrow flight as I said I myself have moved to a heavier head. That being said do you think that there should be a minimum bow weight to take advantage of the single bevel heavy heads and heavy arrows. I shoot 55# and up so I believe I an safe but what about the hunter who has used 45# with success on elk should they not be allowed to elk hunt. I mean you can only cast a 600 plus grain arrow with so much force from a bow at this weight. Does the benefit deminish at some point. Just playing devil’s advocate. Thoughts please.