bjrogg, the only tanning that I have done is braintanninng hair off, I have trapped a ton of fur and put up air dryed, I do know that if you want hair to slip just add water, When I do my deer hides I don't use ashes to remove hair and grain just throw in a barrel of water for a few days and it will start to slip, same think happens when water comes up in river and can't remove animals for some time. The warmer the water the quicker thinks seem to slip. Good luck with your tanning and keep us informed with your progress. Bob