Dude,
After being at this for over twenty years, I've burned through at least half of the industry either through owning pistols or trying them out.
No on both counts. The tooling marks are not that deep.I'd agree that the tooling marks and roughness inside a CZ do not hinder its operation or accuracy. However, doesn't that make it a lot harder to keep clean? Couldn't that lead to undetected corrosion etc?