The Sis-U was in tears this morning -- the bonding wasn't going well, and it wasn't Precious' fault. Sis is more traumatized than she thought, and can't deal yet. It didn't help when Prescious was too hyper to eat dinner last night. (Boomer ate like a champ.)
So, as of this morning, Precious is now my puppy. Which works best for all involved. We renamed her Sugarfoot (she has tiny white toes on her left hind paw), after my first and second dogs.