At the moment they are keeping thier hair. Sheep is by far the hardest pelt I have ever cured. I salted as soon as got them and then washed in biological washing liquid the next day. They were scraped of flesh and membrane on the first day. I have now spent every day since that drying and smoking them under plastic in the back yard. They are still a bit damp on the under coat but the skin is buffed and dry. I kept scraping more membrane off most days. Tommorow will be day 6, it has crossed my mind ikea is 40 miles away I could unicycle it faster.
Some sheep skins will loose their wool regardless of how well you dry them. If they are easy cares /ancient breed the warm spring has them shedding their pelt.
I have no idea if I done them the right way or not. I know washing powder, smoke and salt arrest bacteria, but most stuff on the net shows one of these ways, I have used all three. But then sheep are filthy and have very thick hair. The jacob skin has been brought inside tonight, looks ok it needs a serious comb though it is heavily dreaded.