Caline CP-20 Crazy Cacti Overdrive An incredibly diverse overdrive pedal with a boat load of settings. In addition to the four Vol, Tone, Drive and Boost knobs there are also 2 switches. The first has Comp Cut, FM and Vintage modes. These provide a range of usable tones adding clean boost, crunch or remaining neutral respectively. The two way switch Mosfet and Standard create a more punchy or smooth overdrive. The boost obviously adds a boost and a touch of saturation. Like other pedals the Crazy Cacti is true bypass and has a solid metal enclosure.