I think the OP meant "effectiveness!"
I will second what Bojack says and add that the most important skill is vision and estimation with control of the cut card being another must. Sucker is way off, a human can not retain the exact sequence of cards long enough get an advantage like that in BJ. Im not saying you can't pick up a cinch winner if you're great and the shuffle is a mess... but they would be freak occurences. A great ST might get a much better edge than a counter by cutting a fat slug directly to their hand, but the practical play is to cut a bad slug out or a rich slug into play and just use it to augment your counting game to give you a greater edge.
-BW
Sucker is way off, a human can not retain the exact sequence of cards long enough get an advantage like that in BJ. Im not saying you can't pick up a cinch winner if you're great and the shuffle is a mess... but they would be freak occurences.
This might be a newbie ST question, but what's wrong with seeing the RC drop a whole bunch, and seeing how many decks that goes into? So if the RC drops 16 in 1/4 decks, and you see that 1/4 deck get spread into 1 decks, you know the RC is going to drop an average of 4 per deck. Seems like it doesn't take extraordinary skill to determine that you could have an advantage for that 1 deck slug.
Not only is there nothing WRONG with that line of thinking, that's the first step to shuffle tracking success. The next step is to watch for the slug which mates with it, and combine both values. When you realize that the dealers are required to shuffle the exact same way every time; you'll find that this is easier than you might think.
And after you do this for a while, your mind will then start to open up to almost unlimited possibilities......
This might be a newbie ST question, but what's wrong with seeing the RC drop a whole bunch, and seeing how many decks that goes into? So if the RC drops 16 in 1/4 decks, and you see that 1/4 deck get spread into 1 decks, you know the RC is going to drop an average of 4 per deck. Seems like it doesn't take extraordinary skill to determine that you could have an advantage for that 1 deck slug.
I beg to differ on the effectiveness of shuffle tracking question. When shuffle tracking is used in conjuction with counting you can really increase your effectiveness. By tracking the shuffles and cutting if you are the cutter of the deck you can take immense advantage of the shoe. There is alot to consider here but alot of books deal with the theory. I do it all the time but it doesn't always work the way I want nonetheless it is one tool an ap can use.
If you are tracking slugs, thats a good start, but are you tracking what they are shuffled with, or if not what is the composition of the tracked slug after the other random cards are shuffled into it?
I have no expertise in the area of ST. However, if anyone could track a slug of cards through the shuffles I generally see at the casinos, then I would put it close to the realm of magic. The cards are mixed so well, one must know not only the initial slug of cards, but also the composition of the cards being shuffled into it. Then on the next shuffle go round, how in the world will anyone know the composition of the new cards being shuffled into the already shuffled into slug? To me it's more magic than skill, and I don't believe in magic. To me, the only use of shuffle tracking is when one has scouted high and low and found a casino or certain dealer that has settled for an atypically weak form of shuffle that mere humans have a chance of tracking through. Like I said at the beginning, I am no expert at ST, but I think I do possess a certain amount of common sense. Others may differ. lol