Put the Nacets away for a while. The first time that I used a Nacet blade was with a new to me third generation British Aristocrat. I didn’t know at the time that it was the most efficient/aggressive British Aristocrat. It was a blood bath. I have never bled so much before or since. I swore off of Nacets for 6 months. I started using them in milder razors and I began to get great shaves albeit sometimes with a little irritation. If you do a search looking for Eye Test in the title you will find several threads that I started with 200x photos of razor blades. If you look closely you will see that the Nacet, like most Russian Gillette blades show a jagged/serrated edge. Some people (me) are more sensitive to that than others. That said, I have been using a Nacet for my past three shaves with exceptional sharpness and no issues with comfort. Improvement in technique including lather making have made the Nacet a top blade for me when I want a close shave with a minimum of passes. It took me a while to get there though. Try the Nacets again in six months.My set up has been going well for quite a while now, so I thought it would be a good time to try the vaunted Nacet blades. Well, the first shave was a surprising disappointment - weepers galore and maybe a nick or two. And here I haven't seen blood in weeks! So how many chances do you give a new blade before you say no, not for me?