I've just had my first shave with one of these, loaded in my Merkur 34c. Recently I've been trying a selection of blades sent to me by kind members here, and have used a run of blades that didn't seem sharp enough to get through my coarse stubble without tugging and pulling. I think I'd subconsciously been applying a tiny bit of pressure to compensate, which did mean that I've got a few tiny specks under my chin today with the Yellow, which I'm often prone to and which seem like a cross between a non-weeping weeper and ingrown without really being either. Otherwise, I can only echo the title of this thread - this may be my new favourite blade in this razor, supplanting Astra SPs! When I made sure to work with zero pressure, the blade felt as comfortable as the Astra but seemed to get through 2 days' growth with even greater ease. I could feel the sharpness of the blade, but, unlike Feathers in this razor, it never felt harsh at all, and the result was most impressive! As I've mentioned before, Feathers work brilliantly for me in milder razors, but this seems the perfect mix of sharpness and smoothness in this razor of any I've tried (and that's quite a few now).