DE SOTD, OCtober 24th, 2020 Blade: KAI SS (10) excellent blade for longevity + sharp & smooth + extra wide blade from standard blade by .009"thousands.
When I first tried these many years ago they didn't seem to be very smooth(probably newbie issues). I decided to try them again and they are now working great for me, sharp, smooth and each shave seems to be better than the previous one. I am using them in a RR German 37 Slant razor.