In my short time I have tried lots of blades, but I will contain my reviews to those I have tried in the Festher ASD2 for consistency.
Lather is unscented PAA mixed with Arko.
In order of sharpness
Feather, KAI, Nacet, Derby Premium, voskhod , gillete Silver Blue.
I have others I have yet to try and more on the way.
I think my favorite so far is Nacet.
However, as my technique improves I like Feather more and more.
The KAI is very snug in ASD2
Lather is unscented PAA mixed with Arko.
In order of sharpness
Feather, KAI, Nacet, Derby Premium, voskhod , gillete Silver Blue.
I have others I have yet to try and more on the way.
I think my favorite so far is Nacet.
However, as my technique improves I like Feather more and more.
The KAI is very snug in ASD2