A few years ago when I started safety razor shaving before I went back to electric I had a sample pack of blades to try out. The Feathers just seemed to tear my face up so I stuck to the milder Crystals. Today I was out and saw some Feathers and thought what the heck. This time I was careful and used a very light touch with my post war Tech with a Feather in it. Wow what a difference. The shave was not only the closest I've had but also the most comfortable. Guess maybe I learned something on here, it just took a little while lol