I was under the impression that the frown was part of the way the razor was originally built. And being told that it's got a learning curve on how to use these, but once you got it, its a great shave. Is this not the case?

Its true that I have never seen another W&B with a blade like this before.

I wonder if the frown is ground out, that pretty much means flat edge, and would it remove much weight from the blade?