Oh man. I would have been so sad! I know even with good breed stock it can happen, that is how genetics rolls out sometimes. It is a shame it sounds like it is happening with some frequency though. SS are one of my dream breeds, I think they are just beautiful and they have a lovely personality reputation. The little cockerel we accidentally got in our pullet shipment was just the nicest guy, we had to rehome him due to the laws about roosters here, but he was a gem. I am pulling for the OP and her little chick. I really hope it pulls through.