Brent nailed it, IMO. Without a doubt hand polishing followed by a slow patient rust bluing will yield superior results without dealing with the noxious process of hot salts 'bluing'. Anyone can fire up a buffing wheel and polish a piece of steel and then throw it in a bluing tank. The results will range from horrid to pretty good, but never, IMO, will the best of those jobs equal a decently hand polished and rust blued job.
Like so much else in life, what you get out of a job of work is equal to what you put into it. Sometimes there are no shortcuts, and this is one of them.
