Ok I've been tanning hides now for about 3 years. I've gotten the science down with the whole tanning process. I have 2 deer hides that I just got out of the neutralizing stage I hung them up to drip dry before oiling them. After about an hour I come back to wrap hides in towels to dry rest of the way. When I start to take hides down I notice they are both covered with blue dots all over. There is no slippage of hair anywhere. This has never happened to me before and Im scratching my head trying to figure this out. Has anyone else experienced this????