Has anyone used this on bass yet? My guitarist bought one last month and I threw it into the chain just to see what it would do. It only has one knob. All my guitarist would say is that, "it's a pedal that makes you sound better". I'll be damned if he isn't right. It sounded awesome! So, does anyone know what it's actually doing to the signal? Or has anyone else played around with it? Is it doing something to the signal that I don't want done, but am too uniformed to know about? I only played with it for a couple songs during practice. Any thoughts would be appreciated.