And quick takes…
… on the answers…
- My wing chun has nothing that resembles a one-off, one-hit, one hand strike to a limb that is designed to disable that limb.
It does have at least two ‘arm breaks’.
A) One is the tok sao (CK - slapping your own arm bit). I was taught that privately by my sifu, who wouldn’t teach it to many others of an equivalent stage in form and application practice because they didn’t have the control or he felt them too inclined to use it. I’ve tried it in sparring: it isn’t going to break anyone’s arm in normal circumstances (ie without a lot of hard practice at breaking wood and things with it, and a lot of practice getting it to work timing- and whatnot-wise at speed against resistance).
Problems: it takes a specific punch (elbow down, long range, coming in at mid height). It takes both hands. It takes a very good eye and speed. It is difficult to angle away strongly enough to avoid bringing it straight in towards your body.
OTOH: it is actually surprisingly easy to get on, and disrupts their structure/balance very well.
Summary: not a destruction as sold, not in a modern wing chun practicability in practice setting anyway. Good enough tool in the box for a simple panic unbalancer.
B) Flying arm bar in all it’s lovely variations… the energies for which are in several places in the forms. It has been flogged over and over again.
My summary: It’s fine against scrubs and a good unbalancer, and easy enough if practised enough. Possible to break arm, more likely to hyperextend elbow, but not particularly high percentage against anyone who’d ever had at least one fight in the school playground!
C) There is no reason why juts, paks, even bongs can’t be used as effective ways to put a limb out of action. There is also no excuse for looking for these techs and opportunities: it would/should always be incidental and by happy chance. Why? Very low percentage.
One day I was sparring with my sifu and I caught him unawares with a good shot which he pakked. It hit my forearm and immediately (adrenaline and all) it 'did something ’ to the muscle which prevented me from effectively making a fist with that arm and made it very difficult to physically turn my hand in any direction. It swelled up later, and took about two weeks to heal. This was once, in over ten years of practice in wing chun and nearly 20 years of full-contact and semi-contact sparring.
I’ve also had elbow trouble bad enough to stop training from bong saos being turned over into an elbow to elbow strike (intercepting my incoming on their elbow) a few times. It seems to angle well away from the centre and to be like a karate block, but it fits perfectly with wing chun’s principles to me (I would use it anyway - dam Ned MMAer that I am!). I have used it in FC MMA sparring countless times (and was taught a similar tech in MMA - maybe from Thai?). It has never put anyone out of action (wouldn’t expect it to particularly, and of course, in sparring, wouldn’t want to) but has made them think twice about putting in strikes on the same angle without a better set-up combination.
A good jut turning the fingertips back to yourself and shooting the hand-blade onto your opponent’s wrist/forearm/bicep is a staple. Problem is again, doesn’t work on fighters except by accident. Look for it and your reacting and therefore slow, and NAILED. Make it a reflex and you might get it. Again, better on scrubs. It’s painful but not a fight-stopper.
D) There are several wing chun kicks (all of them maybe?!) that have the potential to damage your opponent’s legs a great deal, and I have had to sit out of sparring sessions after even light contact. If this happens to you, you too are a pu55y and should train Thai! Again, more scrub destruction than limb destruction!