This play is best used in 2nd or 3rd and long situations where you expect a pass rush from the defensive line and a softer zone or Cover-2 defense. The ace-formation spreads out the defense to set up the play. The quarterback takes the snap and looks straight upfield as to not tip off the play to the defense. Meanwhile, the guards release downfield to pick up their blocks. The reciever makes a very quick fake upfield, then comes back towards the quarterback to make the catch. Once the receiver has the ball, he should look to find the left guard and go around his block and head upfield.