The Two Stroke’s Oil knob controls the level of clean boost by up to 12dB – plenty to saturate your amp’s front end. What’s more, the pedal’s internal charge pump means the gain is genuinely clean. On many other pedals of this type, ‘unity gain’ is normally found at between 9-12 o’clock on the output level control, meaning much of the travel of the pot is actually wasted. Unity gain on the Two Stroke is at the Oil control’s minimum setting, allowing for more control across its range. If you just want to hear the effect of the pedal’s EQ, set the Oil to zero. Simple.