I hope you get an answer to this one Clinton cuz I'd like to know as well. That "smile" setting thing is all I've ever heard about and had folks (other entertainers too) swear that the "smile" was the way it should be done. Being a suspicious sort, I too, deep down, have always suspected that that answer was just too simple and easy to be the true or correct way and have longed for the day when I could flaunt superior knowledge and sound better via all these goofy knobs and sliders.

Knobs at the ready and waiting.