First go with a gem open combo micromatic SE razor using a personna gem blade and finished the shave with a dorco HQ st301 de blade on my parker variant setting 5. Shaved off my beard and I'm amazed how easy it just mowed it down no problem. Not even my Gillette new type open comb razor was that good when shaving off a beard.
I've never heard of this one. In comparison to Green, Yellow, black, how i sharpness and smoothness? I find Black the sharpest, green the mildest, and yellow in the middle.