I sort of hope people will see this, buy it and report how it shaves. We need those few brave men https://suppaparts.com/Safety-Razor.php
From the other high precision gizmos they sell, I'm guessing the razor is a quality build. One base plate that flips for four different aggression levels. No additional parts to buy - cool idea.
Hmmm, so the two sides of the razor are set for different levels of aggression. Not my favourite design...