Originally Posted by venice10
In a 10 handed NLHE game, there are 28 cards used and 24 in the stub. Automatic shufflers shuffle 7 times. Let's assume that there is a card on the bottom of the deck when it is put in the machine and the shuffle is perfect.
Shuffle 1: 50% chance it moves to slot 51.
Shuffle 2: 50% chance it moves to slot 48.
Shuffle 3: 50% chance it moves to slot 44.
Shuffle 4: 50% chance it moves to slot 36.
Shuffle 5: 50% chance it moves to slot 20.
Shuffle 6: 50% chance it moves to slot 12
Shuffle 7: 50% chance it moves to slot 6.
Therefore without intervention, it is impossible for an automatic shuffling machine to take a bottom card put in the machine and make it possible for the SB or BB to receive it even with a cut. Sure it isn't likely. But if you see the ace of spades go in the machine on the bottom and the SB is betting hard when you have a K high spade flush, it could win you some money.
This is not how the shufflemaster deckmates work. They do not riflle the cards as a dealer does. Instead they operate with elevators and grippers that move cards from one location to in the unshuffled deck to a specific location in the new deck.
First a random pattern is selected. That pattern detrenmines that the card in the 6th spot in the unshuffled deck will be in spot number 29 in the new deck and moves it accordingly.
If you wanted to simulate a shufflemaster shuffle you could do something like this. Use a random number generator to select a number 1-52, count down from the top of the deck that number of cards (1 being the top card 52 being the bottom card) that card gets moved to be the bottom card of the new deck.
Now randomly select a number 1-51 count down and move that card to the new deck ....
repeat.....until all cads have been moved from unshuffled deck to shuffled deck.