I used Krowtann to tan a raccoon and followed the directions exactly. Everything worked great, except the hair is slipping on the one leg. This is the second raccoon I have had this happen with and both times the legs were the only places the hair slipped. I've read numerous posts and cannot figure out what is wrong that it is only happening on the legs. I know the entire hide was submerged and again followed the directions exactly. Any ideas of what I'm doing wrong?