9mm,
What I was trying to say about the bowie style was that with that straighter false edge the knife in question has more of a point than is sometimes on such knives. Bo Randall said that his #1 design , which he got angry if anyone called a bowie, was easier to sharpen on the false edge than bowies and provided more of a point. To be honest the only curved false edge I thought useful was the curved back of an original SOG knife I used a little bit. In that case that back was not for fighting, but provided a curved hand sycle blade for removing vegetation. It worked very well for that allowing one to carve a little tunnel of sorts through heavy stuff down to where you could see out without being seen. Straight, I like if the knife is to be used for fighting.
As to the "Commando Knife" Which European references often called the F/S knife yet most US sources call the S/F knife. The reason I carried it was that in places it gets cold we found that knives like the KaBar USMC knife and the little air crew survival bowie had difficulty piercing through heavy wool layers of clothing. The F/S had much less resistance punching straight through.
I mentioned how I sharpened the F/S blade down to with in one inch of the guard, that is how one provides for indexing with the F/S and such round grip designs.....it allows you to check with your thumb to see how the blade is oriented without slicing the pad of your thumb. Interesting that when I did an early review of the Phrobis bayonet that became the current US issue that indexing with that round grip was a concern I spoke to the designer about before going to press. It was my belief that for GI Joe the grip of the M5A1 through M7 bayonets was more useful than the broom handle shaped current issue. The designer pointed out one could check index with the thumb by finding the hole for bayonet mounting.......
I can understand the concern about breaking a tip with the F/S knife, but I believe most broken and reshaped tips are the result of some yahoo throwing the things.
I would not carry an F/S on the street for a defensive knife, it was not a defensive knife when I carried mine and I was in uniform at the time. For a person in the home that can not access firearms I think the more I do think about it might be just fine.
-kBob