Loaded one into my Muhle R89 the other day. Only about 2 days growth (stiff whiskers). Lovely smooth shave actually. Not the sharpest of blades compared to the likes of Nacet, Perma-Sharp and Feather but did a decent job with a bbs finish on my cheeks and most of my neck. A bit of irritation but nothing bad. Not sure I'd buy more but I'll deffo use them up. Worth a try, might be good in a single edge situation like a shavette.