Ace sequencing works much the same way. When three or more aces are put into the discard tray together or close together, you can watch for when they start coming back after the shuffle. By knowing when an ace or high card is likely to be dealt, you can increase your bets. When you have a higher chance of receiving 10-point cards and aces, it increases your edge.
The other advanced tip is called hole carding. Hole carding is possible when a dealer isn’t trained well and shows the value of their face-down card sometimes. You have to pay close attention to catch this, and it helps if you sit directly in front of the dealer or to the opposite side of their dealing hand. These advanced techniques aren’t possible in many games, so you shouldn’t worry about them until after you master card counting. But once you learn how to win counting cards, you should look for opportunities to use these advanced tips.