For some reason, these blades never worked for me. I tried 2 or 3 fresh blades, thinking the one before it was a dud - but they never gave a smooth cut. They seemed to skip an awful lot and I received a good number of nicks where I would otherwise not. It was really surprising to have a shave as poor as the one I received with these coming off of Derby's, Wilkinson and Personna's, where my shaves were great. YMMV of course, as is evidenced by the great score of the rest of the reviews.