Hello everyone,
Thanks for all the warm welcomes, helpful replies, tips, and sound samples. I really appreciate you all taking the time to respond and I will try every suggestion. I was in a long session yesterday so I haven't been able to respond until today. As Patrick2099 mentioned, I have had better luck with the getting more responsiveness from some of the well known profilers of amps I've tried since posting (Michael Britt and Top Jimi)
@paults, good to see you on here my friend! It's been a long time. We should grab a coffee sometime. Please tell the rest band I said hello. I still have Sully's old Ampeg head. I'll check out your Marshall profiles I found on the rig exchange.
Here's a few thoughts I had in playing with it in the studio for the first time yesterday.
While the band grabbed lunch I did a quick profile of an Orange Tiny Terror with the master cranked wide open (with a Les Paul and V30 Mesa cab) since it was easy to overdrive the low wattage tubes, just to see if I could get a similar response to the Kemper. I only had about 45 minutes to mess with it and this was my first attempt, so please take my comments lightly. While I could get it to sound very close, it wasn't quite as responsive to the volume knob as the real thing and there was less of a compressed "tube" feel. Adjusting the various power tube settings on the Kemper seemed to help a somewhat, but it felt different, or "squishy" like a more traditional compressor device instead of power tube compression. I never got it to match the exact feel, but it was much, much closer than any other digital amp I've ever tried.
I'd say it matched as close as two different models of the same amp or different speakers on the same cab. Listening in a proper studio environment with acoustic treatment and high quality monitors. I could always pick out the Kemper when blindly A/B-ing, but it was subtle. Both sounded good, just slightly different. Either would have been fine for tracking though.
Overall I'm extremely impressed with the sounds of the amps. The effects sound really great too, though I do wish there was a spring reverb emulation. (This seems like an huge omission since there are a lot of plugins that do it pretty well). I don't think almost anyone can tell by the time your audio is mixed, mastered and converted to popular low resolution formats MP3, AAC, Soundcloud, or Youtube.
While I still might prefer cranking real amp, it would be impractical for most applications, plus you'd have to spend a small fortune on boutique amps and effects to do what you can with one Kemper. I'm sure as I get better at dialing in the amp it will only get better.
Thanks again everyone!