Hi, guys - I have been using Lutan for many years and recently changed to an Alum/salt tanning solution. However, I have conflicting advice on the mixture. One top taxidermist told me to mix 1 gallon per pound of Alum and per pound of salt. Another taxidermist says to mix 1 gallon per pound of Alum, but 2 1/2 pounds of salt mixed in another four gallons of water, then mix together. I am confused to say the least. What is right please guys. The first solution does seem rather strong however, but help! Bill.