As you can see from the pics my 300mm white #2 suji has an unevenly ground ura-like hollow that runs along most of the left side of the blade. The section near the handle where the hollow tapers away is a shallow convex like you would expect. When I found the hollow it gave my quite a surprise, as I was expecting something like a 70/30 right hand bias convex grind. It clearly isn't made for sharpening, so food separation would be my only guess for its existence. I have a ~4 degree edge on the back, so the hollow doesn't extent to a traditional 0 degree bevel as it may appear.
I haven't seen any other discussion on this, so is mine unique? Are they normally ground more evenly or not at all?
Click the pics twice to make them big.