I think I have a new worst. The Treet carbon steel "black beauties". Bought them on a whim because they seemed intriguing, but boy, they should be called "black tuggies". Granted, I've only tried one blade out of the pack. I made it through one shave uncomfortably figuring maybe it was the razor I used so this morning I threw it into a different one with worse results. I made two strokes and said "enough" and changed blades. I'll give them one more go with a fresh blade just to make sure it wasn't a dud.