Yes, I agree that a good rust blue beats a caustic blue any day and that is most probably the way I will go when the time comes.

In my experience you can always tell when a MS has been reblued .............the bolt tension spring invariably gets blued along with everything else, presumably because it is difficult/impossible to remove.

Does anyone know about that spring? Can it be removed? If so, how do you go about it?

Cheers guys.

GG