Don't like the blade shape...can't answer my questions...why not simply move along then, rather then de-rail the thread???
Because it is the BF way. Some folks just have to make a thread about themselves, and then it becomes a sarcastic, snarky piss fest when someone gets butt hurt. Anymore, I think a thread that stays on topic for more than about 5 posts is a winner.
I have the Tangram Rumble, which is no doubt seriously influenced by chisel nosed knives like the Norseman. It is much lighter, thinner, smaller, not a frame lock, has thin G10 scales, is a liner lock, and close inspection will allow one to see that the blades are not much more than similar. But in regards to the sharpening question, the general blade shape isn't hard at all to sharpen if you are comfortable doing freehand sharpening. I use a 1200gr 12" diamond chef's rod, the same I use on just about all my knives. Sharpening this blade shape isn't a problem. But as noted above, some kind of freehand rod would be my choice.
I use it at work (construction), and the blade is really surprising with it's utility value. The recurve portion cuts very well for cutting rope, cordage, and for heavier cutting. The long tanto"ish" point makes a great sharp scraper, an excellent flat chisel, and is great for other chores that require a controlled slicing cut. I like it a lot more than I thought I would, and in fact, it is in my pocket now. I can easily get the knife sharp enough to cut my "V" cuts in my cigars. I actually bought this knife because I was fascinated with the blade shape and I am pretty pleased it has worked out so well.