opinions on this technique?

I've seen similar. I guess I'd like to see him move his head to his left as his hand controls the knife hand, create more of an angle. Also he really didn't talk about any distraction before the move. You hear Bas talk about that a lot.

But I'd say the move is legit, just be quick!

everything looked pretty good to me, I agree with Bruce though. Also, and maybe its just me, but in the very first movement, it looks like the way its performed, he's only using his arm vs. the opponents arm to move the knife. If the opponent is stronger, it may be hard to execute that. Thoughts?

@madness cool stuff. some of the things he did looked like they required more strength and every here and there it got a bit flashy (the spinning elbow, lol?) but at the same time, lots of good stuff in there.

On the Krav Maga tech-

We had a technique in the Marines that was against a similar reason-either someone holding a knife to your throat or stabbing at your face or upper chest. The technique was a redirection similar to what the instructor did, but then you slid in for a standing arm-triangle type clich. You would then thrust your hips into him and pull, effectively hip-tossing him while still having the arm-triangle and land with all you weight on his back (he should be landing belly first). From there if you're fancy you can slap on a neck crank and snap his neck, or if you're pressed for time you can stand up and start stomping his head.

Another, simplier technique, when you grab to redirect, wrap his arm and put all your weight on his elbow. Even if you don't have the arm fully trapped, it will buy you some time to work the knife free from the attackers hand.

My opinion on the video- if I were just wanting to get away, I would do what the instructor did-a few jabs/straights to the face will disorient him at the least, allowing you time to disengage and escape and evade. If i needed to take him down/kill him, punching him like that would be ill-advised because you aren't controlling his weapon or his body, which means he can pull away and re-engage, this time more pissed off because you hit him.

maddness: agreed, except even without trying to escalate situation, stuff can still happen.

chaz: I agree, but this kid didnt think so...

http://lolympics.com/files/images/motivational-poster-emo.jpg

The initial part looks dangerous. He is pushing the knife back out against the aggressor. If a stronger guy held the knife and he felt some resistance, he'd just push back and cut the dudes throat.

I agree with BL. He should guide the knife 45 degrees to his right shoulder while slipping his body out at 45 degrees to the left. The rest looks similar to Dog Brothers vids I've watched, so its all good.