You said a system of cameras was in the rails on BJ tables. Unless there are other "rails" I'm not aware of, I was refering to the padded arm rest that goes around the BJ table. Is this not the "rail"? If so, and the system of cameras is in there, will the cameras not be obstructed from reading the stack of chips in the betting circle by a player's hands on the table, his stack of unplayed chips, his drink glass or forearm resting on the table?

The technology intrigues me, but I guess I am having a hard visualizing the "camera" placement.
Sorry to wear you out on this. Just need to go check out the Hilton!