I have a Vulcan in 70#/30". Mine is shooting an amazing 297 fps with a 450 grain arrow, producing somewhere around 88 # of kinetic energy. I love my Vulcan and everyday that I shoot it, I am more thrilled that I bought it over the Mathews or the Vectrix. Dont get me wrong, I love the Vectrix, but the performance of this bow is truly amazing. Very little (if any) hand shock. I'm grouping my shots all the way out to 50 yards. Very balanced and very steady bow. I hope others are as pleased with theirs as I am with mine.