RB,
If it makes you feel any better, my set-up only produces a mere 65# of KE and went through an 800 lb. bull elk this year like it was butter (and took a rib on each side). I was only shooting 415 gr. arrows so the momentum wasn' t all that great......but that elk didn' t know any difference .

That being said, I' m currently setting my MQ1 up to shoot 580 gr. 2317 xx78s w/ 150 gr. Snuffers for next year......Go figure!