Friedman BE OD Overdrive Pedal - does the Gain Trim pot make a difference?

For my Presets visit: johnnathancord... This pedal is kind of nuts. The gain knob, even all the way down has more gain than most pedals I've played. As it turns out, the GAIN TRIM pot inside the pedal can have a drastic effect on the whole vibe of the pedal.
Iridium is on the ROUND setting.