This is an old thread, but it caught my eye as I was browsing. I've been 'unofficially' studying Chin Na since 1995. By unofficially I mean that I don't have a specific Chin Na instructor, rather I've purchased the books listed above by Dr. Yang, Jwing-Ming and Zhao Da Yuan as well as a DVD by Dr. Yang, Jwing-Ming and one by Tim Cartmell whom I've spoken with via email in the past. I've taken this and compared/blended it with my own studies in Hapkido and Aikijujutsu (all of which I now simply call Kong Soo Do). It is an excellent fit of course as it is original source material as it were.
In my nearly twenty years working in a maximum security correctional facility I've had hundreds of uses-of-force. On occasion I've had to punch, knife hand strike (edge-of-hand) and knee spike violent felons who were attacking me, other staff or other inmates. And interestingly enough, I can't recall ever kicking anyone. But of the majority of these UOF, I've used locking techniques. By far I'd say that Chin Na style techniques (or Hapkido or Aikijujutsu or Kong Soo Do if those labels are preferred) were needed more often, and with almost 100% effectiveness. Only very rarely did I encounter someone with which these techniques failed to produce the result needed. And this was usually an individual who was a trusty in modern chemistry who felt no pain. Let me clarify this, the lock or locks worked as far as limiting or immobilizing part of the body, and I could have gone farther to destroy the joint if needed, but the pain tolerance was not a factor in and of itself due to the drugs in the system. So the lock or locks worked as far as what they were designed to limit or immobilize, just not useful as a pain compliance tool.
What very interesting to me is that, Chin Na is NOT a seperate system unto itself as many mistakenly think.
I am not disagreeing with you on this point, but it caught my eye as I am revisiting Zhao Da Yuan's book. He makes an interesting comment on page 1 of chapter one where he states, "Within the greater development of the martial arts in general, the techniques of Chin Na slowly evolved into an independent style." He goes on to discuss that the other elements of kicking, striking, throwing etc have been combined into it. Whether this is/was a move towards making it an independent style or not is unclear, and it is a translation so that needs to be factored into it.
does anyone have any exeprience with Chin Na? How does it compare to Hapkido?
A generalized lineage would look like this; Chinese Chin Na (through various different styles of Gong Fu) to Japanese Aikijujutsu (which has other founding elements as well) to Hapkido. So from a general perspective it is a branch of the same tree. Just as Chin Na started out as purely a 'Seizing and Controlling' methodology and later had additional elements added in, so has Hapkido had additional elements added in by its 'founders' over the years.
This needs to be viewed as a positive. In realistic self defense one cannot rely solely upon punching or kicking or grappling or locking. One may be fortunate to be successful in only one aspect if violent encounters are rare or non-existent. But a totality of the arts needs to be known if violent encounters are (unfortunately) common place. As I mentioned above, I most often used locks...but I've had to occasionally strike, spike or throw an attacker as well. And sometimes multiple aspects of the arts are required in a single altercation. My goal as a Deputy isn't to 'beat down' the badguy (despite what Hollywood portrays), it is to stop the attack and then gain control then restraint devices. On the street is a bit different of course, but a totality of knowledge is still crucial.
Just some thoughts.