Here is a article he didhttp://www.nononsenseselfdefense.com/knifefighting.html#knifers
A quote from him
" There are many so-called "experts" who claim to be able to teach you either knife fighting or defense against a knife. The problem is that most of them are just teaching regurgitated martial arts, usually from the Philippines. While I have lots of respect for the martial arts of other lands, the truth is that you live where you do. Odds are you are not in a "knife culture."
And Another Quote from him
" Lie #15 The FMA are the ultimate knife fighting systems
Let me lay it out on the line here. When it comes to knife fighting, they are all fucking dangerous.
There is no "sun source" of knife fighting. There is no land of ultimate knife fighting arts. There is no race who hold the monopoly on the "right way" to use a knife. As I said, I have traveled around the world and seen knife fighting systems from even more places and what I will tell you is that each of them will make you just as dead, just as quick.
What I will be the absolute first to admit is that the FMA have done wonders for organizing and explaining the ideas behind how they do what they do. And for that I take my hat off to them. And I salute and respect the skill and prowess of their eskrimadors, kali gurus and arnis masters. But I draw the line at even sitting quietly when someone tries to elevate one group of fighting skills above all others so they can swagger around saying that they study the ultimate "knife fighting" system. This above my immediate gag reflex when someone -- who has never faced a knife in the hands of someone who wishes him ill -- swaggers around and tells me that he knows everything there is to know about knife fighting because he studies under (fill in the blank).
There is no right way, one way or only way to use a knife...and the more you know about all the different ways the more likely you are to be able to come up with an effective counter if you are attacked in one of those ways. But if you have only studied one system, the odds are against you being able to come up with something that works. And I have to tell you, although Western practitioners like to claim that the FMAs do, those arts don't cover all the ways a knife can be used on you. There is literally a world full of differences out there.
I have said it before and I will say it again: *Nobody* has a monopoly on the truth about knife fighting. The whole of the subject is just too big. Everybody has a slice of the pie. And learning what they have to say about it and how they do it where they are from is the best way for you to increase you chances of survival.
And another link to another article on his page called Lies about knife fighting.http://www.nononsenseselfdefense.com/knifelies.html