When you use just one expression pedal for volume and wah wah it would be great if the volume function would be global when no wah effect is activated. Right now when your pedal acts as a volume pedal and you turn the volume to zero it jumps to maximum when you change rigs. It would be great if it would be possible to still use the volume pedal like a normal volume pedal would react even when the "WahPedal to Vol." function is activated.