Thought I'd give these a try, just to see what a carbon steel blade would be like.Day one gave me a nice shave, smooth, reasonably close and no irritation.Day two, lots of tugging, to the point that I considered changing the blade mid shave. I had to go over and over the same area to get it as smooth as I got it the day before.I noticed some razor burn and irritation, probably due to the extra passes required. I don't know if it was the carbon steel, or the angle of the grinding that caused the problem, or maybe user error.Overall a pretty disappointing experience, I certainly won't bother with the remaining blades, nor will I buy anymore. Good luck to those who are happy with these blades.