Strategy charts will only get you as close to a 100% RTP as the casino allows. To get over the 100% hump, turning the house edge into a player advantage, you must employ a card counting technique. The more complex the system, the more it will add to your RTP.
There are two things you need to know about card counting. First, you cannot do it at an online casino where the games are computer generated by an RNG algorithm. The deck is reshuffled after every hand, negating the strategy entirely. Second, if employees of the land-based casino knows you’re counting cards, they can either ask you to leave, or increase the shuffle rate to diminish the efficacy of the count. Either way, casinos are well within their rights, and there’s nothing you can do about it, except not getting caught.
That being said, you have to be to able to count cards correctly without the casino knowing you’re doing it. You cannot possibly be inconspicuous if you haven’t practiced card counting so devoutly that it’s become more instinctual than mindful.
To practice, you can start with a single deck of cards, peeling off one at a time and keeping count as you go. If you get to the end of the deck and the count is at 0, you’ve probably done it right. Do this again, and again, and again – so many times that you can consistently complete a full deck’s count in under a minute.
Note: Make sure you’re utilizing a card counting technique that supplements enough RTP value to get you to a positive expected value, or +EV (e.g. RTP above 100%); the higher the better.
Next, put on your favorite playlist of music and do it again, this time while singing along to each song. This will help you to split your concentration between the two activities. Once you get this down, progress to multiple decks of cards. I suggest being able to count through at least four decks; an amount that represents 50% penetration in an 8-deck shoe.
The key to making this work is to implant new distractions, making the activity as true-to-form as possible. Again, a little help from friends can be invaluable. Have them sit around the table with you, holding a casual conversation as you go. Play a real game with them in this manner. With enough practice, you should be able to pull off a precision count in a real casino environment, without setting off any security radars.