Once you find your settings you never touch them anymore. This is the main difference between my head and the axe, where I always do a little tweak somewhere every time I power it up. The head never disappoint and always sound good. I ask myself many times about the why. Probably because once it’s filtered through an ir, the tone is more focus in a frequency.That control layout looks so cramped I can't imagine turning one knob without accidentally adjusting another(big gecko fingers here)...
a amp in the room it’s different. You don’t have a high harsh frequency or this or that you want to remove or that disturb you the day after