Do you mean "Continuous Shuffle Machines?"...
ASM's, i.e., Automatic Shuffle Machines are GREAT for non-Wonging, non-tracking, non-sequencing CC's. While you are playing through one deck/shoe, the other is being shuffled. Minimal "downtime" between shuffles.....just put the "played" cards in the ASM, pull out the "Fresh" deck/shoe, someone cuts, and keep on playing! +EV just by having many more hands/hour!
In 6D for example, easy to lose 1/4th of one's playing time, just watching the Dealer shuffle cards......ZZZZzzzzzzzz..
Since I am still a N3-WTS, i.e., NON-Wonging, NON-Tracking, NON-Sequencing CC'er, I will most always choose an ASM game over hand-shuffled, if ALL other factors are equal.
Conversely, CSM's, i.e., "Continuous Shuffle Machines" are a "DIFFERENT ANIMAL". Basically, all unplayed cards PLUS ALL cards played to an ADVERSE Player decision, i.e., BUST CARDS, are "put back in the 'HOPPER', and played again. With FULL BORE, the exact same King of Hearts that busted your neighbor's '16', could be drawn again to bust your own '16'!
MOST CSM's utilize 5 Decks, or 260 cards. I have seen posts that suggest some advantage is possible playing CSM's. The theory goes like this:
---Dealer + Full Table (6-players), presume ave. of 2.7 Cards/Hand.
---If MOST cards are "little", BET-up, as the ODDS of more than 2-3 of THOSE SAME "little" cards reappearing the next hand are Minimal.
---If MOST cards are "big", BET-down, and with the same logic.
---Seems to me like playing KENO with BJ, but will await scientific review.
Europe....who knows? On bj21 in the last few months, there was a post regarding "Airport-BJ"....they used CSM's.
Hope this help answer your questions.
phantom007.