Also (and I held out a long time on this... wish I hadn't) start looking into IR's for the cab(s)/speaker(s) you are trying to profile. I just got the Redwirez Matchless ESD2x12 IR packs and they made a huge difference with the Matchless profile I'm using. I don't even need the Lo/High cuts after the amp anymore for recording. I keep the EQ there though, and use it live at 85hz/10khz so my place in the mix is a little better defined.
Are you converting the IR and loading into kemper?