It is a flat grind...

Actually, that relates directly to one of the things I expected to dislike about the Harsey designs in general- the high grind line/center line. I'm more used to designs that place the grind line down the center of the blade, sometimes in order to have a usable (sharpened) false edge. In the harsey designs, there isn't really room for that, but the increased distance between the grind line and the edge reduces the angle at the edge and the "belly" at the curve up to the point, and the false edge increases the fineness of the point, and you end up with something that slices very well for the thickness of the steel, taking it away from the old sharpened-prybar school into a much more useful class of tool.