yeah versatility was one of the things that drew me to the Kemper. at one point I had 11 100 watt Marshall heads that I could never turn above 2 so, that was stupid on my part. I also figured this would be a good recording tool but now im thinking about just grabbing a couple of those UAX IR pedals, but I already have this and am sure its the better option if I can just tame it
I honestly believe its a complex as you want to make it.
I treat mine just like a regular multi channel amp with a few effects built in.
I would split it into 2 stages -finding the base sounds you like, and then storing/accessing them.
People often try to mix these steps up and get confused.
For finding your sound, which is the hardest bit) I would:
1) Use Rig exchange to look for the type of amps you like - sounds like Marshalls, and some of the Mbritt stuff included is a good place to start
2) Think about how you listen to them - via a cab or headphones etc, volume and in a mix
3) create a shortlist and then compare
4) Tweak the sound ( but I tend to limit this - if I'm not feeling it, move on rather than swap cabs or the multitude of changes you can make)
5) Add effects to taste
6) Use RM to make the changes as its quicker and easier to visualize
Storing and access ( the easy bit)
1) Use performance mode to store a group of sounds. I have clean, crunch, solo and a couple of variations, but doing Marshall sounds and fender sounds is also fine...or do both...there are 125 performances to use up if you want . This depends on what you use it for, live or just easy access when playing around at home
2) Keep the majority of your sounds in RM. I have about 10 profiles on my KPA as I don't need any more on there. So use RM for moving stuff around
Home that helps a bit...