Looking to buy Python , what would be the most popular one other than say a Python Hunter? I had one in the early 80's a six inch blue and kick myself in the butt for ever getting rid of it.(That & a few other guns thru the years.)Stupid question aren't they all Royal Blue or is it a different finish than others. Any certain years and what would be the serial number range? I prefer a 6 or 4 inch model and I would shoot it.any help would be great,Thanks.