Originally Posted by ros

A word of caution: Because this practice system is extremely demanding on your fingers, hands, wrists and arms, you must be very careful to avoid pain. If you feel any pain when doing this technique, you must stop at once and rest before attempting this again. Never play in pain, or excessive stress on your muscles or joints. Doing so can cause you serious long-term physical problems. Also, make sure you are thoroughly warmed up before practicing anything strenuous (especially when attempting any ladder systems!).