What are the pro's vs con's to shooting a heavier/stiffer arrow? I'm current shooting 4560(250) Carbon Express Terminator arrows cut @ 27 ½" and I'm pulling around 60#. Next time I buy arrows, (ain't changing anything this year) would it benefit me to go up a size to say ...6075 (350's)?
Heavier ......I can't think of a negative. But, shoot the arrow that's properly matched to your bow (as far as spine/stiffness).
Ga--by "sizing up" do you mean moving to a heavier arrow or sizing up in terms of spine? If you move up from the 250's to 350's your spine is going to weaken. If you want a heavier arrow, you can just keep the same stiff arrow you currently use and weight the front. You may have to cut a bit off the front of the arrow, say a half inch/inch or so to off-set the increase of your tip weight.