Ok, let me first state that I just mount game heads, I know very little about tanning. I send them all out to be done and have had great luck doing so. I recently ran into a problem. I thawed a wet tanned and cape and noticed it was rubbery with very little stretch. It also made my hands sting when handling it. So I tested it with litmus paper and it is a Ph of between 4 and 5, closer to 4 as near as I can tell. So, my guess is it was not neutralized properly and and has acid swell. How bad of shape am I in. Should I just take it back and have it retanned? It has been frozen solid for ten months or so, and the hair still seems tight. Am I at risk for slippage? Im not thinking just neutralizing it will fix the problem, or will it? Any advice from the pros would be appreciated. Thanks in advance for any replies.