As a quick guess, you are wwwaaaayyyy under spined. Without knowing your draw length or you speed for this arrow, as I ran your info thru Archers Advantage program and you would have to have a draw length of about 20" for this arrow to work. As a reference my son shot his conquest last year with a 29" draw, 63# with a gold tip 5575 at 27" with an 85 grain tip to get spined correctly.