Quite so.
Aus8 is a martensitic stainless steel.
A8 is a high alloy carbon steel.
the modification added to A8.... about the same difference you can see between a 420 and a 420 HC.
Infi:
C 0.5
Cr 8.25
Mo 1.3
V 0.36
Co 0.95
Ni 0.74
N 0.11
I'm not trying to persuade anyone, i'm just giving what I know as information. The non commercial nature of Nexus knives makes useless to promote them.