Quote Originally Posted by planeden View Post
Yall all know that I don't claim to be an expert in this in any way. But what it seems like razorfranken81 is saying is that Soligen razors have always been ground and honed on a concave stone to make a convex edge. But also that the masters of the craft have all retired and are not producing the quality that they did in the glory days. It kinda seems like the argument is the level of quality degradation.

There is a small debate about the edge shape, and I certainly don't know the science of the flat, concave, and convex bevels. But I would think that with the microns we are dealing with, a fine shaving edge (at least for 99% of us) can be produced flat, concave, and convex. So here again, it seems to come back to whether or not the edge is shave ready regardless of shape. If I pulled out my first razor out of the box and it tugged, pulled, and hurt I would have thought "I guess that's why they don't use these any more" and had a fancy letter opener and a Mach III razor or stuck with the beard.
Someone on another forum measured the thinness difference behind the blade. It was 1/5000th of an inch. About the size of a 10k grit scratch pattern. That doesn't sound like anything meaningful.