Of course I upped my poundage. Im shooting a new bow Im shooting 314FPS. My Nova was only shooting 200something. I cant remember for sure. Plus I switched to carbons, wich are a little heavier than the Easton 2315s I was using. My old Nova was supposed to have 70# limbs on it. Found out they were only 60# limbs and I was only set at 53#draw weight.......I bought my Stinger and made sure that it had 70# limbs and now Im set at 60# draw weight. Now than Im getting used to that, I may crank her up a little more now. So im feeling my KE is high enough. After fighting with the Nova all season last year and losing 3 deer it was time for a change. The old Nova just didnt have it anymore... Not sure why the only broadheads I ever had passthroughs with on the Nova were Wasp Hammers and Muzzy MX 4s. Smaller cutting diameter maybe???? I dont know.