The Perfect Throw
The perfect throw begins the fraction of a second in which
you catch the ball.
The hand containing the freshly caught ball, continues downwards
in a smooth arc, so that the ball does not change direction
rapidly, but is gently guided from the position where it was
caught, to the position where it will be released upwards
If you did this perfectly, you wouldn't have to close your
hand as you 'caught' the ball.
In fact it is possible to to 'catch' and throw the balls
using the backs of your hands. You can try that later.
When you release the ball, you should be thinking about the
arc it is going to make on it's journey, where it is going
to peak, and where it is going to land.
Of course, this is a lot to think about when you're just
starting, so erm, I suggest just bunging it up in roughly
the right direction and seeing what happens.