I once used science and logic to determine the answer to this immediate sonic questioning.
I ate a nice big bowl of chicken soup...
Directly afterward, while playing in my studio, all my Axe-Fx III presets to use a metaphor, sounded thin watery.,
Moments later I decided to eat a nice thick well done steak, and a salad with plenty of croutons,...
I went back to my studio and my AXE-FX III and cranked it up...
Much to my surprize, all my presets sounded nice and beefy with plenty of crunch.
Conclusion:
This experiment irrevocably proves...
Preset behavior is quite obviously dependent on what one eats for dinner,...
So...'Bon Appetit'!