It is only natural that different Blackjack tables use different rule variations; the casinos are trying to improve their house advantage by using less favorable rules. However, you have the ability to choose the tables you are playing at; therefore, you possess the liberty of finding the table that works best for you.

There are several unfavorable rules in the game of Blackjack — and some favorable ones as well — and you need to pick your table carefully in order to enjoy the most profitable playing environment. Dealer Hits Soft 17 and Blackjack Pays 6 to 5 are among the rules you should really try to avoid. Another rule that is actually quite unfavorable is the Double on 10 And 11 Only rule now used in a lot of Blackjack tables.

Although the influence of the Double on 10 And 11 Only rule may not be as bad as other unfavorable rules, this particular rule can still increase the house advantage by 0.25%. There are several doubling down opportunities with a hand worth 9, but you cannot double down if you are playing at a table with Double on 10 And 11 Only rule.

The rule also keeps you from doubling down with other starting hand totals, which makes it a lot less favorable. If you understand the Blackjack matrix, you will see several profit making opportunities that are rendered unusable when this rule is enforced. If you can, find other table that is more favorable or find another casino.