We have many unique suggestions on how to acquire the perfect service action.
In today’s lesson we suggest that you “choke” up on the racket, holding it above the grip, by the throat.
Then make the service stroke and make sure that the racket handle passes your arm and protrudes upwards making a V shape.
If the racket finishes level with the arm, or hits the arm, then the movement is wrong and the service will be very limited in speed.
Once you have repeatedly completed this movement successfully. Ease your hand down the handle and continue the swing looking for the V shape.