The Triangle Choke for example. It was created purely for sporting purposes, but it has a
strong self defense application seen here;
Again, I'm going to disagree with you. Let me explain why, with respect :wavey:
Did the triangle choke work in this video? Apparently it did. Was it self defense? Hard to say from the video clip, however, let's assume it was. Rather than having a
strong self defense application, it has an extremely poor self defense application.
First, the guy was so focused on trying to get the choke applied that he was oblivious to his surroundings.
Secondly, at no time was he trying to regain his feet as quickly as possible.
Thirdly, if this individual had a weapon he would not have been hindered in using it.
Fourthly, he was only able to apply this choke due to the good graces of the people surrounding him. If the other guy had a buddy willing to step in and kick in the head of the guy on the bottom it would have gone quite differently. A good ground defensive strategy does NOT employ staying on the ground and does NOT assume that it is a one-on-one fight. A good ground defense strategy utilizes a strategy of regaining the feet as quickly as possible, by whatever means is necessary.
You mentioned training Gracie BJJ, that's great. I know Royce Gracie. At one time he taught at our regional training center. What he taught was the same sport BJJ he taught to competitors. He was invited to teach by a HL coordinator that had never actually been in a use-of-force nor knew what a police or corrections officer really needed in a training venue. BJJ was the flavor of the month and he was apparently a big MMA fan. Now, for the BJJ players reading this....I'm not bashing BJJ. In a sport venue it's fine. In a street venue, particularly for HL professionals it is detrimental training. At first people were a bit dazzled at being able to train with a celebrity. Then they realized that none of the training was useable on the street. He no longer teaches there. Nothing against him personally. It's just that what he has to offer, for the most part doesn't work in our venue. Same thing if Tony Blauer tried to teach sport competitors, it just wouldn't work. BJJ contains 'some' useful tidbits if you find yourself on the ground, but overall the methodology is completely wrong for the goal.
Hopefully that will drive the point home in a way that doesn't get anyone's nose out of joint but provides perspective for consideration.