One of the few parts I've actually broken on my mag has actually been a silver L10 spring. I suspect there was some material defect in the metal. I hope.
Obviously, I need a new one, but tuning these things is somewhat annoying.
Has anyone ever considered making some spring-shims to allow tuning? Like some end shimmed wave springs you could incrementally stack up to bring a gold spring (of which I have way too many of) up to L10 standards.