I'm struggling to settle on an arrow. I'm shooting a 2010 Bowtech Destroyer 340 set at 69#s and a 31" draw. I feel like I need to pay special attention to the spine tolerance, given the long draw length and the amount of power going into the arrow as I release it. Am I over thinking this? Does anyone have any suggestions a particular arrow that would suit this set up? Any and all thoughts are much appreciated.