I purchased the knife used with an excellent convex grind. This is the first knife I have purchased which I could easily sharpen to the point it cut hair off my arm. Unfortunately, I only used the knife a handful of times.
The thin handle and thickness of the blade from cutting edge to spine made it feel a little clumsy. The knife was certainly sharp but it seemed there were only a few things it did exceptionally well. It was certainly not good for feather sticks, carving, or any kind of intricate work. I worked on the spine some to get a good 90 degree but it didn't do well at striking a fire steel.
I added a few green liners in order to thicken the handle. They also added a bit to the appearance of the knife. I did not glue them in but instead just had them held in place by the three screws. I was a little worried but the handle still locked into the sheath despite being thicker than normal (by about 1/8").
These knives are highly recommended but it just did not work for me. I ultimately sold it off to someone else using the Bushcraft USA forum in order to gather money to try out something different. I used the money to get the Halfbreed Decker shown on this site.