Jim,
If it was my casino, I'd never use preshuffled cards. To me, how could you assure the integrity of the game if your staff could not verify that all the cards are there? We already seen one one example of reshuffled cards causing an issue. How would one not sure for all the cards are there? Or really shuffled? I'm sure someone will try to arrange the cards so that the decks are stacked. People are very devious and who knows what is happening at a factory 5000 miles away. The time/money savings is negligible to me. Casinos have plenty of down time where the staff could do their own preshuffled in the confines of their own casino, where I'd feel much better knowing there was no outside influence.

Just my feelings on that.