Put the racket at the back of the head, with it touching the hair, and then bring it over the head, brushing the hair all of the time until it is in front of the eyes.
Then make the same swing, but substantially higher above the head and finally attempt to hit the ball with the same feeling.
The actual movement to make the stroke is a little different from the movement in this description.
However, as a TEACHING method this is a very effective and fast way of creating the stroke.
The methods we show are also a great way of checking if your existing service swing is truly efficient and correct.
Have a look at the Ultimate Kick Serve Lesson and let us know how it works for you?