Like TBN between Mejiro and Koma it bridges a gap nicely on certain steels, I like the feel and added refinement it brings into the mix. I'm look for a nice piece of a Ban too.
I used TBN as an example, depending on the progression Atsu can fit in several diffferent applications.
Gave the Wacker "Allround Blonde" a full progression on this Les Dressante bout, as well as the Belbo:
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That is a very classy razor !!