Mine is an SK5 version, and like others have said I love mine. I am not a metal specialist by far but I "hilghly" doubt that anyone without a white coat and a laboratory could tell the difference in performance from one generation of Gurkha Kukri to the other. Whatever differences in Carbon V, SK5, VG10, and the new 0-1 have not shown up in reviews. You never hear anyone complaining that their SK5 doesn't hold an edge or my 0-1 snapped while I was chopping.
What makes this a great blade/tool is its design. The length, weight, balance, feel, edge, and bevel are what makes this kukri special. But if you are a "metal guy" and love 0-1 just buy it and beat the hell out of it, if the edge isn't what you hoped for put it up for sale on the forum. Every one offered, regardless of steel or price, sells quickly regardless of price.