By definition, a strategy sheet gives you the best way (or almost best way) to a play a particular game. When a casino puts in 8/5 bonus poker, they are expecting to make more than? .83% on the game. 2% below optimum is expected payback I have heard quoted. So the casino expects to make 2.83% on the game.
If you play without a strategy sheet, the casino has no idea if you play well or not. If you do play with a strategy sheet, I'm sure the casino figures you for playing above that 2.83% expected house take and it certainly seems like you would be a 'less desirable' customer.
In blackjack, if I sit down at a $10 table and proceed to bet $10, $10, $75, $75, $10, $10 I will probably draw the attention of the pitboss, whether I am a counter, a basic strategy player or just a gambler. Drawing attention in casinos mostly works against the player.
In summary, I don't see how using a strategy card at a casino can possibly make you a more desired customer but I can think of several ways where it makes you a less desired customer.
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