what I am still perplexed by is that given I only draw 60 lbs, going to a heavier arrow will only jump up my ke by 3 (i.e going from 314 to 398). I guess, how heavy is heavy enough. Is improving my ke by 3 worth buying more arrows or should I look into buying a newer bow that will shoot a heavier arrow faster. I am limited to 27.5 inch and 60 lbs draw?? what is the optimum KE for what I shoot? thanks for the help.