I suppose if I can't peel an apple with a chainsaw its operator error too eh?
yes.
it's clearly a case of the operator using the wrong tool for the job = Operator Error.
This argument has been beaten to death thousands of times. Its insanely hard to use a stone for convex edges and not mess it up or change the profile with repeated use (and chipping it is messing it up).
it's been beaten to death by people who, for some unfathomable reason, seem to think that a convex edge is something mystical, weird and difficult.
convex edges are not mystical, nor are they weird and they are far from difficult to sharpen.
if you grabbed a piece of flat bar-stock steel, (let's say 10" long, 2" wide and .25" thick piece of Leaf Spring steel?) and hand-ground one edge of it on a piece of rock until it's sharp, guess what! you have just done a convex grind! why do you think Katana traditionally have convex edges? because if you grind down a piece of steel on a water-stone, you will get a convex edge profile.
now, i'll grant you that sharpening a convex edge on a stone takes a
small amount of practice, as the angle you need to use is rather different to the angle you would use for a flat-ground blade.
however, once you get the hang of it, it no longer registers that you are sharpening a convex blade, you're simply sharpening a blade.
but once you get the hang of it, it's really easy.
i can get my WM1-3G shaving sharp again with less than 10 minutes work with a DC3 stone.
i
maintain that edge with a strop, which radically increases the intervals between needing the stones.
why believe that sharpening convex edges is difficult when it isn't?
