A boast which hits the third wall will come back into the middle so if you can control the ball to have two bounces on the floor before the second side wall you will make it much more difficult for your opponent to return.
This is called a working boast and should be your standard boast.
When you practice with Boast - Drive routine you should develop the control needed to play consecutive working boasts.
![](https://i.ytimg.com/vi/UeDKaFhg92U/maxresdefault.jpg)