As stubbornly gritty as its name implies, the Mojo Hand FX Mule Overdrive pedal will add dirt to your tone even if you turn the knobs all the way down. Mojo Hand FX perfected the ability for the Mule to produce its own brand of overdrive, and to do so impressively. Dial up on the Level and Kick knobs to get yourself a singing distortion, or keep them below 12 o'clock to shape a smoother drive. Either way, the Mule Overdrive does its thing well.