SR-101 holds a better edge, but chips more easily. SR-77 is tougher than SR-101, but SR-101 is still very tough, tough enough, in most situations.

I have a S6 but not a Regulator. (I've had plenty of knives in both steels.) The S6 is a great knife. I'm sure the Regulator is, too. You are in a fortunate situation – you win whichever way you decide.

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