I guess they coat the blades before they grind.
and to do a hihg convex grind wouldn't the belt just brush up against some points on the knife (as I've even found happens even when using the sandpaper/mouspad technique to get a high convex grind) and messses up the finish.
thats what I though jerry was talking about.
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vic doesn't do full convex grinds on the knives BTW (well, the ones we've seen)
but even so I would think he would know when you try to go high you sometimes hit other parts of the blade.

this is just all from my understanding, but I'm not much of an expert either.
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