No gate... I never let anyone track with a gate.
The way I set monitoring gain is as little gain as possible. If they do any pinch harmonics, that's what I'll set the gain level too. If it's too little gain to pinch with, then they won't feel it right. Otherwise, I go for little gain to get them hitting the strings harder, as well as to better hear their intonation.
My band - Ex Curia - Prog in an Opeth meets Karnivool meets Porcupine Tree meets Tool kind of way