I would recommend Gold Tip 5575 arrows for your set up. And 125 gr cut on contact broadheads to give you the ultimate in penetration. As for the arrows - you can usually pick up blemished ones on Ebay pretty cheap. I shoot 66# @ 28" with my Martin Firecat usint the GT 5575 and 125 gr Muzzy Phantoms or Magnus Stingers. This is my big critter bow (bear, bison, moose). For whitetails I shoot GT 4565s @ 28" with 100 gr Magnus Stingers from my Martin Cheetah set at 57#.