A2 has 5% chromium, it resists rusts a bit, but will stain.
It is not hard to sharpen. ATS34, or most any stainless is harder to sharpen.
A2 takes a scary sharp edge, holds it well, and in the Genesis shouldnt chip or brak the tip too easily.
EDI is coating their A2 with silver chrominum
nitride which should keep the blade cosmetically well protected.
This will be a fantastic knife.
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"The most effective armor is to keep out of range"-Italian proverb