The Swish system is a natural system for first time students as it works as the body works and therefore is easy to use and remember. My experience is that young players can adapt to it easily and revert to it when under pressure in a game. It is, therefore, an excellent place to start teaching. If you are working with experienced players, it helps them diagnose their shooting and get rid of weaknesses. Again, once they learn this system, they seem to revert to it when they get pressed or tired as it is more natural.