I have another candidate for an every day carry knife for defensive use.
The knife is the Boker Jim Wagner Reality Based folder.
It is not made to use as an ordinary knife. It's purpose is purely defensive.
It has an ultra sharp point that penetrates very, very well.
It has a serrated recurve blade for viscious cutting ability.
When I first saw it, I dismissed it as a gimmick.
Once I understood what it was for I bought 2.
Take a look. You might like it.
It's not a gimmick and it has been around for several years now. It has, as you describe, several fighting worthy features that make it a better than ordinary knife for fighting.
The narrow tanto tip would be excellent for penetration AND making a good wound profile.(gets thick quick, so it creates both a deep and wide wound)
The recurved edge works as you describe, it "catches" material in its concavity and forces it into the edge of those serrations, becoming a much better slashing weapon than ordinary blades of similar or slightly longer lenght.
I like this knife and I'm actually ordering one now for a hands on review. I do know enought about knives to say that, unless there's some freak quality issue, this knife is very good for its intended purpose. The handle is generous, well proportioned, and those finger groves will help have a better weapon retention.
I will say though, even if I think this is a very good weapon, I like the Cold Steel Vaquero even better. If you analyze it, it has many of the qualities the Jim Wagner knife has, and its almost twice as big (3.25" vs 6") if you go for the largest model they offer, the Vaquero Grande, which is the one I carry. A mean Nogales tip that penetrates well, recurved "S" serrated blade too. The handle isn't perfect, a bit thin for my taste, but it pays off in ease of carry for such a big blade.
A 6" blade or even the 5.5" blade in the Extra Large Vaquero, that's hardly an inch less than a 7" full sized Marine K-Bar knife!... Folded in your pocket! and in spite of the size I can carry it all day in my front jeans pocket, foget about it until I need it.
I've been around knives since I was 10 years old. This is the first time I've seen people used to guns and knives take a step back when you bring this thing out. It is very impressive, capable of lots of damage if used with enough skill or determination.
Both knives are at the top of the game for defense knives, at least in my opinion and what I look for in such a knife. Will the JW Boker knife get things done very well? I dont doubt that, I just think that the Vaquero can do even more damage given is brute size.