I dont know about snake skins never used them but have used sinew as a patch , using sinew you may have to make some minor tiller adjustments I did, the guy that taught me to do the patch recommended going 2" past the bad area each side & sand a taper to the bad area worked for me also with osage I needed to make sure the area was as oil free as I could get it, I used bolling water & dish soap to clean the area !