I’m still using the original KOS Azor I bought when it first came out (however many years ago that was). I found it to be the best shave I’d ever had then, I still do now. For me, it’s perfection. It doesn’t need to be improved upon. Gillette can slap a new blade in each year from now until eternity, I’ll never change to another blade. The same razor, 65 new blades, and 7 new handles, but still the same razor! Ha ha! I do miss the black gel though. Only ’cause it was black! Thanks KOS.