Thanks for your reply Donny. Guess it depends on where you play & what 'works' for you. I just know that sometimes when your back is against a wall & your speakers are on each side of you, its kind of nice to have some sort of a monitor to hear yourself. Of course, I realize the Boss Pas system can be your monitor + the PA for the audience. In my case, I simply like to hear my vocals for the monitor just a little above my main PA mix & I was just wondering what 'other' (esp Boss Pas users) keyboard/vocal players do.