Personally for my hunting shafts I have always gone with the most KE, and it has always served me well esp on them hogs. Not to mention you are using a wide cutting b/h, IMO you need the most KE you can get on those heads (I too shoot a 2+" cutting mechanical). You will need the KE for those heads, I personally don't feel there is overkill when it comes to KE.....JMO....Good Luck