I will second that, at least for edge holding. ATS-55 has been a bit rust happy for me, more like D2 steel.
Still I prefer ATS-55 over Aus-8 every time.
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Wayne.
"To strive to seek to find and not to yield"
Tennyson
Ranger motto
A few useful details on UK laws and some nice reviews!
http://members.aol.com/knivesuk/
Certified steel snob!