I am strongly considering â€œCold Bluingâ€ my Makarov. The gun has a great deal of holster wear needs to be refinished. At first I was considering Parkerizing or Duracoat, but it doesnâ€™t look like they comes out right without bead blasting, and I also want to try to maintain the factory blue look of the gun. I have been researching the processes for months now and I think I have a pretty good idea of what I am doing, just to be sure though I am going to try it out on an old shotgun of mine before striping my beloved Makarov. The Question I have for you guys is what Blue should I use, Blue Wonder, or Brownells Oxpho-Blue?