Chin Na, when Tiger or Eagle claw is developed sufficiently goes much deeper into grappling and holds than any other martial art I've ever encountered. A master can seperate tendons, twist muscles and dislocate bones by powerful grips alone. This gripping aspect is what is lacking in most other styles, though it is present it isn't developed nearly so much. It is possible to render an attacker incapable of fighting with a simple arm grip without too much risk of long terms injury to your attacker if you are skilled. It takes three years of dedicated hard and soft training to the hands and arms and isn't for the lighthearted or simple hobbyist. The drawback is it might take longer to learn the traditional Chinese way but the training is very well developed and with perserverance produces breathtaking results.