Interesting video, especially because the author has a USB microscope and shows before and after photos.
Quite an interesting video. I don't know about other blades, but whenever I tried this on proglide, the sandpaper effect increased manifolds and lead to inflammations. I believe this technique of keeping blades clean can be more helpful in lesser number of blades (two and one).
Seriously, cleaning one side of the edges makes them look better under a microscope. Who woulda thunk.
