We already did that one. Dweezil uses one in his rig now and wants two of the Neo version. This is a lot more complex, and way weirder. You set the “quiet” pitch with the voice knob and the “loud” pitch with the two knob. Either pitch can be anything from -12 to +12 semitones, so you can make the shifter sweep anything from zero to two full octaves in either direction. You set the sensitivity with the Mod knob and then the Alt knob (hold select and turn voice) to pick between fade or bend between the two pitches. So you can have a subtle upper octave that fades in as you dig harder, or a f’d up rubber band cat piano. It’s really neat.