KE is a worthless measure or energy when applied to archery
"heavy" arrows = 12-14 grains per pound of draw - are your arrows heavy?
broadheads are exceptionally important, don't use cheap ones, don't use ones that can fail, don't use ones that are a fad
prepare your bowhunting setup like you prepare for a roadtrip across the USA. you take a spare tire don't you? why? you've got excellent tires, the chances of a flat are not high right? but you prepare for the worst ....... same thing with bowhunting. Prepare your euipment to handle worst case sceanrios .... ie bad hits, and if they ever happen your chances of a lethal hit remains high. If your setup is good only when things go right, its like traveling without a spare tire ......