I am interested, but it very easy for me to go overboard. When that happens, my shooting suffers, because each shot is trying to answer a question other than, "Can I hit that spot?" I would say I'm much more particular about tuning than speed. My faster bow produces 70 ft# of KE, the "slow" one produces 63. Either will do the job. Both are tuned to shoot broadheads straight and true. I would be better off spending more time on the setup of my hunting areas and stands than worrying too much about the bow.