O.K. what's the deal with the steel?

[USAFSP]

I just bought a new KFF Professional from CRKT and I love this knife, but I have heard it has an AUS6-a blade and that it has a AUS-8 blade. Which one is it?

 

[Tommi]

Professional - alum. handled model - Aus-8.
Regular Kasper - zytel scales - Aus-6.