I ordered an AUS8 model that had an uneven edge grind that didn't go all the way to the ricasso, and the lock became crunchy after a day of owning it. Easily fixed with WD-40 but I do believe I got a lemon.
It has something to do with the distal tapering of the blade (how it thins out as it goes towards the tip).
Part of it may have to do with the grinding/machining process too:
Hollow grinds allow both sides to be ground at once, whereas full flat grinds have to be done one side at a time.
It appears that several of the Cold Steel G10 handled knife lines have the unsharpened base of the blade: Recon 1s (with the exception of the 5.5-inch Clip-Point. The 5.5-inch Tanto-Point has both an unsharpened base and "sharpening notch"), Hold Outs, Talwar, American Lawman and AK-47
While others have a "sharpening notch" instead: All of the Voyagers, Tuff-Lite and Spartan.
Yeah, that drives me crazy too. Whoever does/did the hollow grind on the knives you mentioned, as well as the Code 4, and Mackinac Hunter-should be grinding the other hollow ground blades. Look at the bottom.of the grind of the ones mentioned, compared to the ones that are not sharpened to the choil, and you will see the grind terminates more abruptly, leaving the same amount of steel behind the edge, whereas the others are more gradual, and get a bit thick behind the edge, before the choil.It has something to do with the distal tapering of the blade (how it thins out as it goes towards the tip).
Part of it may have to do with the grinding/machining process too:
Hollow grinds allow both sides to be ground at once, whereas full flat grinds have to be done one side at a time.
It appears that several of the Cold Steel G10 handled knife lines have the unsharpened base of the blade: Recon 1s (with the exception of the 5.5-inch Clip-Point. The 5.5-inch Tanto-Point has both an unsharpened base and "sharpening notch"), Hold Outs, Talwar, American Lawman and AK-47.
While others have a "sharpening notch" instead: All of the Voyagers, Tuff-Lite and Spartan.