I am trying to work on a channel that has an A and B amp but I can't get any of the settings to stay. I dont even notice them affecting the tone at all. in the mean time I've been using other effects pedals to try to balance out the difference but having the amps function properly would be a lot easier. I notice with amps on preset channels that I can change the settings and it makes a difference but anything with my own custom channel it doesn't do anything. Trying different amps and placing the mic in different positions makes a difference but adjusting bass, mid, treb, presence and such aren't doing anything for me. The most frustrating part is that when im done editing, as soon as I navigate away, they all reset back to zero.