And for those of us that don't speak Kenpoese:
I like that clip, a lot. He does a very good job of breaking down the technique. It's one of the nicer presentations of a technique I have seen from youtube. Thanks.
We do it a bit differently. I am going to try and explain our differences, and why. Take it as you will.
In our studio, the initial right hand strike does not go to the ribs, but rather the middle knuckle is attempting to clip the underside of the punch; either the forearm (preferred) or the tricep area. This has to do with range. Later, as we gain greater skill, we see the Crane techniques get in closer (Gathering Clouds (which does strike the ribs), Clipping the Storm).
He shows the hammerfist as a 'pendulum' strike ... he teaches this effectively, but I think that is the wrong circle. A pendulum is swinging on a vertical circle. We use a horizontal circle, striking the kidney with the right backfist and following through, all the way to our right hip in the chambered position. As shown in the clip, he is striking the attackers left kidney. I am pretty certain we work our strike to the right kidney ~ although I think the rotation created by the kick could dictate either choice.
By using his pendulum strike, the travel for that inward elbow strike is impeded, in my opinion. By swinging his hand on a vertical circle, the elbow is in very close to the attackers head. It makes for a fast elbow strike. We train to get our right hand chambered back, and launch that elbow, still on a horizontal circle, from a full cocked position. This gives us full travel (always being careful to avoid false travel) for that shot to the head.
My last thought is about the elbow sandwich. In the clip, he executes a heel palm strike to the opposite side of the head from the elbow strike. I suppose this makes sense with the shortened travel of the pendulum strike discussed above. We do not use an elbow sandwich here. Our left hand is busy checking the attackers body for any rotation. Usually, I have my left hand on the attackers right shoulder, or upper arm. If he attempts to turn toward me, I will be aware of it and (hopefully) able to concentrate. If both my hands are at his head, his elbows might be thrown backward into my groin / thigh / lower ab.
Now, if I ripped the tendons out of his knee, and split open his knee-cap, the elbow strikes aren't really going to be a problem, but I want some way to measure and check the rotation of his body.
Andrew Green ~ thank you for the post. People executing this technique as taught in that clip could do much, much worse, in my opinion.