I'll reply, kodiak!
I think you answered your own question. But in my vast experience :rotf: , it seems that brown, blue, or in the white are a matter of personal choice. If you listen to gunsmiths,(ml of course) you will get varied responses. I, too, did the cf gunsmithing thing years ago, and making guns in this time period are totally different than it was then.
I wish I still had my bluing tanks, I'd help you out.
I wish you the best in your decision. :yakyak: