I'm done with this thread I'm afraid. I asked for a summary and no takers. I am not convinced there is a problem that warrants attention. I play many profiles on my Kemper (as do many others, both live and in studio). They all sound fine. I'm happy recording them. No need for any adjustments. So as Frank said "Shut up and play your guitar".
Huh???? Didn't you just provide the summary yourself??