hey, i'm a complete beginner and started with a deer hide and two fox hides. i didnt want to start out with a mult-step tanning process with ph levels and such that seemed complicated. so i found deer hunters & trappers one step solution. the reviews seemed awesome and it said it made the hides very soft. i tanned the deer first. it turned out rock hard. which im sure is because i didnt get enough membrane off. but im tanning the foxes now, and they just dont seem right. the skin seems like its turning crunchy like paper. i got all the fat and membrane off of them, and i followed all the instructions. what am i doing wrong? also, i bought a wire brush for the deer hide. if i get all the membrane off, could i re-tan it? thanks in advance. im not looking to do anything fancy, just wall hangers, with out the hair falling out.