I don't think I'd play. Mind you, ASMs more or less do the same thing, but the opportunity for the pit boss to do just about anything he wants is just too tempting.
Don
Considering that some casinos use preshuffled multi-deck shoes sealed in plastic, it probably is legal in the jurisdiction where you were playing. I would not play the game. How do you know that all the cards are present if you never see them all face up? What assurance do you have that some aces and faces have not been strategically removed? I would share my concerns with the boss and any players present. Then I would take my leave.
This unsavory method has been in use in Nevada for at least a decade. If I remember correctly, Sunset Station was the first to implement it. At this point, the chance of getting the nearly-worthless Nevada Gaming Control Board to do anything about it is zero.
