Many of us buy only from the mfrs direct, or from endorsed, official distributors
Would BITMAIN pre-sell one version and then ship a different one?
This is what Eastshore is claiming why they have the different version to ship in the first place.
FWIW, the 2 S9's I ordered for Dec 11-20th batch show Antminer S9-14TH/s in the order status. Granted that doesn't mean anything since I think they claim +/- 5%. This is my first Bitmain order.