I have a Greco Persian and I carry it at all times either in a nordic pouch in my front pocket or in a nordic pouch on my belt.
Part of me hopes the world never discovers John Greco so I can continue to buy his knives at a reasonable price, and the other part hopes he will get the recognition his designs and knives deserve.
I don't have his phone number handy, but if you see one of his ads, give him a call. A modest man, I think he knows more about knives than most of the current crop of cutlery conmen, and I would count time on the phone with him, and his wife Shirley, as pure gold.
Furthermore, I like A2, but then I think a knife should hold its edge and point even after hitting a belt buckle.
Greco uses glass beading and a special lacquer to get that lovely ghost grey finish, and he will refinish it for $10 or $15. I steel and oil my knife every two weeks or so and it looks nice, if not a little scary to most non-knife people. It takes a little extra work to get the razor sharp edge I prefer, because of the thickness of the blade right down to the final bevel and the ax-type included angle, but I know it will punch through and cut a car door or roof without losing its ability to shave my arm.