Master Fader - Stereo separation

[Nerdkidd]

What is the use of the stereo separation knob on the master track?

I've heard that mixing in mono gives you a better representation of the levels and overall sound when you bring it back to stereo.

But once you come to completing a mix, should the master stereo fader stay in neutral, or does the track benefit from increasing the separation?

[Borderline]

Leave the knob alone! If you want stereo separa...