futsaowingchun
Black Belt
One of my favorite techniques to use which I call the guillotine because the two hands represent the blade of the guillotine.
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I like this guy's teaching style. Even a non-chunner like myself can follow clearly the principles he is showing.I agree with Piedmont. alternating techniques are higher percentage moves. Usually it's easier to generate power with less risk hitting with one hand at a time lie the sequence in the clip below at around 15:30.
The more committed double "throat cutting" movement (Shat gheng sau) does exist in our lineage. It's powerful but a bit tricky to pull off, and you will notice that the strikes are still offset, not thrust out together like an X-block. The resultant movement is almost scissors-like and does not pull the body into a committed forward-leaning posture as seen in the clip Futsao posted. See below at around 17:55.
BTW these instructors do not represent the Assn. I belong to, but their movements are similar, originating in WT.