Possibly there is science vs. art confusion with this. I could be wrong but I doubt any of us hones a razor the exact same way. Different hones, pressure, angle, attitude, skill level and so forth. How could anyone assume a HHT would provide similar results across a group? I'm with Glen on the personal experience results. I take a hair from my head, hold it in my fingers and touch the razor to it. The result gives me an idea of the quality of the edge based on how I like my edges. It's all very subjective.