I have additional information from the creators of this deck - they responded to my question.
Uusi says:
Hi Don - good to hear from you!
We just posted an update (we tweaked our blue, marble back so it now is a mirrored back), and also posted some FAQ's. Your question is one of the most asked - if funded we will be printing our deck with the US Playing Card company. We chose them for their long history in printing high quality, classic decks that I am sure you are familiar with such as, Bicycle, Aviator and Bee.
Please let us know if you have any other questions. We are thrilled with how many magicians are interested in our deck - we hope you choose to help us bring the Blue Blood deck to life!
Best,
Linnea
So not only is it USPC, not only is it smooth finish, but they're adjusting the back to make it symmetrical. I'm more interested now.