Left hand thread lugs - stay or go?

eduardostewart said

i would opt to get rid of them, anyone got a link on proper procedure?

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The few times I have done this, I have knocked them out using a few good bumps with the BFH. Someone on here is probably going to shout at me saying to quit doing that, I'ma gonna damage bearings or some such, but I've never seen a problem from it.