The index and middle fingers are placed either side of the seam with the thumb gripping the bottom of the ball. The index and middle finger joints wrap around the ball to keep the ball away from the palm.
On release ensure that the seam is kept vertical and that the hand stays behind the ball to create backspin.
"It is not only useful for staff who are experienced but a valuable tool for those subject staff who have to take teams."
The variety of sessions across sports - sometimes we steal session ideas from one sport and use them with another.
As we enter the business end of the competition, we take a look at the remaining eight teams and the key talking points surrounding each side.