Hi,
if your finger becomes sore with shoot, then you shoot wrong. With big security you lay with shoot too much power
in hand or arm. A good sign for it is if your shots far go to the left.
I often use heavy stones in the training around consciously more slowly to shoot. One is able to do himself thereby even korrektieren.
The second shot in the new film shows my real speed.
And the stones cause partly considerable damages to my aim.
As you can see in the video, the black centre is already bent. It is a 5-mm-thick steel record.
http://www.youtube.com/watch?v=w3VIXd6iBIE