Since I got the KPA I've been struggling to get really, REALLY awesome tones with the KPA. Several profiles improved the sound a lot, but still I was missing something in the sound, when I listened to clips from others, which sounded much more full, with more balls, better frequencies. Especially when using a SC Strat it was really hard to get the defined distortion going when recording into my interface/DAW. The sound through power amp into cab was to die for, so I was much puzzled by what was going on.
So 2 days ago I decided to make a backup of my profiles and do a flash init (Maintenance menu), and reimporting the factory rigs. One of the first ones I loaded up sounded so amazing, that after that I imported parts of my commercial profiles (by using rig manager). That sounded great, but no longer effects going out of the stereo outs. So I did an init of those settings, and the effects returned.
The sound is now SO much better!
It does scare me though, that after importing rigs all of a sudden the outputs 'broke'. I think that might have caused the fact that I had a sub par sound from the start, since obviously I downloaded shitloads of free profiles from the exchange as soon as I upgraded the KPA.
So, if you ever have a similar issue, a flash init can fix this.
I am in the middle of a project. Luckily I tracked also a DI, so I could reamp, and it's a different from day and night. I noticed the sound lacking especially when using palm mutes distortion, like pieces of the frequencies were missing, or the resolution reverted to 11 KHz or something.