Okay guys I'm in the market for a new arrow. I'm liking the black eagle carnivors. My problem is every spine chart is telling me to use .350. That's I think 7.5 gpi for the arrows I want. I was trying to get a heaver arrow. My question is can I get away using the 300 spine or do I need to get the 350 and figure out a way to add a lot of waight up front of the 350 spine? My set up is an elite gt500 at 28 inch draw shooting 65 pounds. Gonna try to bump it up to 70 pounds. Thanks