[...snip...]

Yeah I switched to Forrest. Oddly the old sharpening company does a LOT of
business and I do not know of one that does flatten blades that are local.


[...snip...]

If they don't flatten the blade, they can't really be sure they will
accurately sharpen it. The deal with a Forrest blade, by all accounts,
is to start with an exceptionally flat blade. But a good sharpener
will flatten the blade as well.