Either KE is great, my biggest concern would be is what is your FOC. I like to run at 11-13 % on my hunting gear. I find that around the 260-270 fps mark makes it so I can twist on any broadhead and get the same point of impact. All of my bulls except for 1 have been killed under 20 yards so 1 inch or less at 20 yardsdifference in point of impact from a slower arrow to me does not make a difference. I am shooting around 73 foot pounds with a cut on contact head, this usually blows clean through anything I shoot. I like to shoot a 4 inch helical vane also. The tip leads the way and the vane keeps it on track. I don't like to compromise either. Speed is great, but if the arrow is not flying straight at the time of impact, your penetration can be impeeded.Glad to see you doing your homework well before the season though. Good luck this year Bareback!!!!