RE: What arrow broadhead set up?
At 31" draw you are probably shooting more like 57lbs instead of 45. I would go with some 2016 aluminums with 5" helical fletch. I use 125 grain snuffers for my own setup and they are great broadheads. I've heard they can be hard to tune but that hasn't been my experience and they are razor sharp and do massive damage to anything they hit.