Out of curiosity, is there a "Bypass Advanced parameters" switch somewhere in the Axe system setup? Just wondering why none of the controls seem to do much (if anything).
Some of the advanced controls are most apparent at high master volume levels, other are more prominent at low master volume. With my presets, many of mine either got very flubby and/or shrill,
Rather than dink around w/ advanced parameters. I started fresh with the amp/cab combination.
I reset the amp (double clicked the bypass button, then switched to another amp and back ) and went through the cabs until I got the closest tonal response I wanted. If it didn't sound like the amp I was using was going to work I started switching amps.
After I settle on an amp, I adjust the drive and master to the desired drive and compression levels. After that I dial in the tone controls. Some of the tone controls, like the plexi, sound best for me in extreme positions. This is true of my real plexi as well. Don't let the knob positions guide you, trust your ear. Generally, the higher the master volume the less effective the tone controls are. I will also many times see if I like the bright on or off (note you many have to adjust drive settings when doing this)
If that doesn't get me their then I have my tried and true advanced parameters I mess with.
If flubby - turn bass tone down, turn low cut up. I turn up until the bass loss is quite apparent then back down until it get flubby. then I find a happy medium. Usually if I mess with it, it winds up somewhere between 80-240 hz. I then will add depth, if needed to add back some low end). If even more low end shaping is needed, I go to the amp eq block.
For high end. There is treble, presence, hi-cut and bright cap.
If shrill and the bright caps is on, I try lowering in the bright cap values. That usually does the trick.
If it doesn't then I try lowering the treble and compensate by increasing presence as needed. I also may lower the hi-cut in the advanced parameters.
that approach usually get me there.
After that, if it does feel right I go to the dynamics section and refine there.
If I feel it need more dynamic eq shaping I will try messing with definition, character, triode plate freq, sag, xformer match, xformer drive.
After i'm done, sometime I will just use the eq section for final polishing.
For me, having a systematic approach saves me time and achieves more predictable results.