It's pretty stellar that you have a sound guy with that level of attention to detail!
You're also a great example of how you make the switch. So many players think they can restructure their entire world and expect nothing to change. You have to work through it and tweak along the way until you get there. Congrats and I'm glad you're enjoying the new rig.
For quite a few years, I've had friends, employers and co-workers try to get me to make the switch to in ear monitors.
I've done a lot of studio work where I mic a speaker, get a killer tone to record then thrown on the cans, hit record and blaze away. Without exception, I have ALWAYS hated playing while monitoring using headphones. I just don't like the sound.
So I knew that doing it live would be about as painful. Throwing a mic on my live rig, piping it through my in ears with little to no tweaking of the monitor signal - yeah. No.
When I finally hit my breaking point last month (referenced in my last post) I knew simply going in ear wasn't going to be the answer - I'd hate it even more than I hated the little to no audibility of my guitar on stage as it was. The only solution was something like a Fractal or Kemper. So I did a LOT of research & learned that while the other solutions might be more flexible as far as FX, routing, etc, for overall realism of amp tone (my main concern) the KPA would be the ticket. Didn't hurt that Fractal only sells direct but with the Kemper I could use my Sweetwater card LOL!!!! So the Kemper won out.
I've played guitar for my living since the late 80's so I know full well that making a change like this - this isn't just another amp, it's an entirely new (to me) paradigm - is going to take time. But I can honestly say every phase (every week of using it) has improved drastically. Here's an example: I've been asked to do a one off gig with a band I used to go see when I was a teenager (I'm 49 so that was some time ago LOL) opening for Styx. I'm one of those guys sho shares every Todd Sucherman video I see, so naturally I'm eager to do this gig. Anyhow, the last couple days Ive been going over their material, songs on iTunes, the Mac and my KPA running through my interface into my JBL studio monitors. Several times both today and yesterday I was struck by how well my guitar sound through the Kemper was sitting with the mix. Using profiles that I, a total newb, made myself of a couple of my tube rigs (a Fender '68 Custom Deluxe Reverb and a custom modified Marshall DSL100). To me, it's astonishing, really.
And this is just one of the many 'horry sheet' moments I've had in my relatively brief time with my Kemper.
I have the powered rack unit. I put it in an 8-space shock mounted rack along with a Furman PL-Plus DMC power unit, my Sennheiser in ears and a rack drawer. I'm already thinking of grabbing the toaster version so I have one here at the house for programming/practice, etc because lugging that big ass rack upstairs to my place is damn near impossible for one guy LOL, but I don't wanna be without it here at home. Talk about your first world problems LMAO!!!!
Regarding my sound guy, he's a real asset - one of a dying breed, a soundman (at the local level) who actually works and cares as much as we do about the sound. When something's missing, he knows it, often before we do LOL!!! As long as I've been with this band, he's run my channel with zero EQ (save for a touch of roll off sub 100hz), whether it be my DSL100 rig, the TSL (also modded) that I used to have, my modded JMP-1 rig or my Fender Deluxe rig - he knows my sound and has been instrumental in helping me get the KPA dialed in.
At this point, I think it's pretty safe to say that I've surpassed the quality of the tone of all the previous rigs. For over a decade now I've been playing amps modified by one of the top amp guys in the U.S. (except the Fender - that is stock except for the 1979 Celestion G12-65 speaker), my custom mod for the DSL/TSL100s is now one of the most requested mods he does - what I'm getting at is I've been spoiled by really really great tone now for a long time. For the Kemper to match (and sometimes even exceed) that is remarkable!