I am aware of the flow from one technique to the other in ju-jitsu. And as a master, you can do whatever you like because you've mastered what you know.
Plus, WC has plenty of joint locks, and throws/takedowns of it's own. No one art monopolizes a type of technique. (although I've never seen anything like chain punching in any other art before. Kempo does have a great continious flow of hand attacks that could be similar in concept) Their are many variants of the same if not similar techniques in many different arts.
cross-training can seriously confuse the student especially in wing chun.
I've see this many times with our students, other people's students in WC and it usually is more detremental when the student is just starting WC. After more of a full understanding of the art is achieved cross-training is more doable.
But...
We had a two year student that decided to cross-train BJJ. He left us for 8 months and came back to spar my hubbie on the mats. He didn't tell us he went off to train BJJ, he wanted to keep it as a surprise to test out the WT anti-grappling.
It was a very entertaining sparring match, but our student was unable to lock out on Hubbie, much less complete most of the techniques he tried. So, no, I didn't get to see much of BJJ in action, it looked pretty ineffective and incomplete to me, because I didn't know what techniques he was trying to do, nor did I get to see any of them completed.
Moral: this frustrated our student to no end, he'd paid a ton of money to cross-train, and wasted valuble time in WC/WT training. He felt embarressed when he confessed to us that he'd left to cross-train because he knew we didn't think it was a good idea. We don't get upset about cross-training, or forbid it, it just usually causes the student more trouble than it was worth.
That's when we started teaching the anti-grappling earlier in classes to keep the students well rounded in their self defense at an earlier stage.
In reguards with defending against a grappler. Chainpunching, kicking, kneeing as they shoot in, I've found to be very effective. Destroy the head, for the body follows the head every time reguardless what art you take, simple phisiology.
"Attack is defense, defense is attack, each is the cause and result of the other." - Lau Tzu
If they pick you up off your feet to slam you down, keep the neck locked and let them throw you. (I've done this in Ju-Jitsu as well as in WC/WT) The give you the head, then keep that gift! This will take most of the power out of their throw, keep your back from getting slammed flat and losing your breath, keep control of the opponent while being thrown. When on the ground, either use the neck/head to get up with, or let go and start using chi sau sensitivity on your back, chainpunching, leg sensitivity and leverage the oppoent's weight off your body, and re-direct and deflect their energy as you would standing.
roll, corkscrew, and pivot your way out of the hold/position of your attacker and come up "swingin" (i.e. kneeing, kicking, and chainpunching) letting your attackers inertia and body to help you up as you attack.
Don't let them up, don't let them get collected, set, or escape. Punch until their done.
for defense against a clinch standing up against a wall or "cage", use chum kui form (when on arm is on top of the other and you pivot from side to side for example) and use the same technique/concept against the "clinch". This will change their body position and balance freeing you for immediate attack to keep them from re-grouping and flowing to another attack or strategy. (I just learned this one from Hubbie, it was sooo cool! And surprisingly effortless in nature against a really aggressive and strong clinch)
Again, good rooting in stance will give the foundation for further action, whatever it needs to be. Pivoting when the opponent's force is too great will unbalance their attack and allow you to respond with your own attack. A good old fashioned kick, or knee to the face as they shoot in is often effective even if you don't get a tooth knocked out or a TKO, it still disturbs the direction of their inertia and body position severely.
Or just chainpunching or chainpalm striking the back of the head/neck if they are so inclined to shoot in to your legs low enough to expose to you.
These can all be executed in combination, simultaneously with one another, in different succession depending on the need of the situation.
Sensitivity, flow, response, and relaxation are key, as well as not anticipating the opponent's next move.
Hense, why I don't wish to cross-train in grappling arts. This would encourage me to anticipate their next move, try to read them to guess what technique they might try next, and teach me to work within the restraints of their art.
One needs to adapt, react to what is given, stay relaxed, and feel the energy of the opponent to respond correctly to their attack.
