Vaughn,
I'm guessing since a 29"/60# Allegiance is doing 317fps with a 300gr arrow, that a 30" model will most likely do 327-328fps. (That's nuts for a 7" brace height and a full string![:-])
So what that means is that my 400gr A/C/C 3-60's at 30"/60# should be doing somewhere around 300fps based upon WWAG's doing 287fps with a 397gr arrow.
At 290-300fps for my 400gr A/C/C that's 75 to 80ft lbs of KE!
If he's shooting 287fps at 397 there's no way I'll be under 290fps for my 400gr. even at 60#'s! That is just unreal performance.
That's enough KE for any mechanical I feel like shooting and I will most likely shoot the 4 blade Rocket Sidewinders or Slammerheads I like so much.