went to huntingfriends.com and recently read a article about the champion diablo and the liberty and noticed they rated its ibo rating at 10 fps lower than the bottem end of there 304-308 rating---plus there nock travel was not the greatest.if you were to purchase one and it was that far below there adv. specs shouldnt they give you a refund.i thought each bow is tested then shipped out--i know alot of manufactures lie about there ibo speeds but 10 fps slower than there lowest ibo rating