First, it wasn't question. It was a direct statement he made that specifically put ME on the defensive. It wasn't politely stated as a question, as you are doing above. He stated "There is no direct correlation that I have come across that the knife methods he taught were ever used by him in combat and were passed on like they were in the FMA's for example." I pointed out that it was used by the Spanish Navaja fighters and by US Marines, and so obviously was passed on. And this was in the thread prior to his statement. So I answered his question....which was really a statement. And it is pretty ridiculous to expect someone to have used Bowie Knife methods in combat in modern times in order to be taken seriously. Don't you think?
I pointed out factually, that many people in Styers time criticized what he was training the Marines on because it was based on his use of the word "dueling" and not based on life or death. It is not "ridiculous" to ask if Styers ever had occassion to use the methods he taught while in combat, many of the early combatives instructors did use what they taught. For example, Col. Applegate's combatives were used by him and his men in Shanghai and that is what was passed on as working techniques. I referenced the FMA's for knife techniques that had been used successfully by people and passed on.
Second, even in Cold Steel (Styers) and the historical examples, those are ALL shown as a defense against a high line thrust, wherein the "defender" counters with a low thrust to the body. That is NOT what we are talking about. The discussion was the defense shown from the video when in a knife dueling scenario that the "attacker" leads a long distance low body thrust.
Back to my original post, which seems to still stand:
For me personally, I am not a fan of it.
First, this is set up as a "knife duel" the way you describe it and your actions about blade placement in case he keeps coming forward. You have your hands and blade lower already. A knife fighter is not going to enter with a deep lunge or slash because that pathway is already closed. You are going to get probing flicks or a way to work past your blade first because the mindset is different than if the other person is unarmed.
Next, I see this as kind of an "ohh crap" defense since you are placing yourself in a position that allows no immediate follow up without a body shift/change. I would teach it as such if you were unarmed and not ready and then follow up with getting out of dodge.
You clarified that it was based on a knife dueling system, and I stated my concerns with the method and said when I would find that defense applicable.
But, again a trained knife fighter isn't going to lunge in like that because you are moving around. A trained fighter is going to remove your blade and/or hands before going in for the kill with a low thrust to the body. This defense is much more applicable if you are unarmed and the other person is armed. Duels completely change the psychology and dynamics of an encounter.
If only one person is armed, they are going to take more chances with the blade than if they are facing a person with a blade. Techniques and strategies have to take that into account. Again, unless the premise is that you are trained a knifefighter against a complete untrained fighter who may be desperate it needs to be a very specific scenario.
Also, to point out in regards to John Styers. Even in the method he presents in Cold Steel, the primary target is the attacker's hands and working on removing those first. Just as I stated in my first post.
I still believe that the technique as shown and presented (knife duel) is not a good choice for that scenario. Nothing you have shown contradicts that either. The debate is NOT using a low line thrust to the body as a counter, which is what it has been turned into. The debate is about the defense used against that low line thrust to the body.