[Matt R.]

I always forget to use it myself. But I really don't see the point in *not* using it in this instance. You're getting called preflop if you push. You might NOT get called if you simply call preflop and then push the flop. I really don't see any advantage here by pushing preflop... unless the guy is not good and will fold getting ridiculous pot odds. A9o is too good to fold to a button min-raise given the stack sizes, but you really don't want to get called with A9o. I have to think the stop 'n go gives you more fold equity than a pre-flop push. Even if the increase in FE is only a small amount, a small amount is plenty to make it the better play.