Originally Posted by Douglas
Dammit. Inspired by the knife sharpening threak, I bit the bullet and bought a sharpening stone on Amazon, and the f***ing thing is not straight!
I guess it's not horrible, and though the 1000 side is pretty straight (just a hair convex - I can slide a piece of paper in under the center) the 6000 side is pretty convex, but that's just the polishing side.
I don't know if it's worth it to return the damned thing to Amazon; it was like $35. Am I going to ruin my knives on this thing?
Is that one of the Norton stones?
Regardless, yes you'll ruin your knives if sharpening them with it like that (based on my straight-razor honing experience, research and failures). They will never come perfect so you always need to flatten them before first use. I think for that stone you need a diamond flattening stone, draw with a pencil a grid on it, rest the stone on the flattener and move it with no downward pressure until the pencil lines are gone (meaning everying has been flattened evenly.
Having said that, perhaps it's too curved to be fixable, I guess you flatten your stone to remove nicks and bumps.