My Question is why is there so many different tanning systems? I have been using Krowtann 2000 on my few raccoon mounts and it worked fine, I am now doing my first deer mount using Krowtann as well and I was advice that I should use a dry preservative. So to me there looks like there is at least three methods dry preservatives, Krowtann, and Pickling. I just watched a 4 hour video on a shoulder mount and the tanning process used was the pickling system. It was extremely long and looked rather expensive. Why so many? What does one benefit over the other?