This is a Really Instructive Page

This also demonstrates the difference between Single and 6-Deck Strategies. Here is the table that demonstrate the expected outcome if you play the 9 a given way compared to another. Check out the choice against the 2. In 6-deck, as is above noted the correct play for nines against the 2 is hit, as opposed to, the single deck where you would double, also Note that the expectant outcome, given in this case as return bet for bet are indeed, lessened as are the gains, for Doubling with the 4-5 vs 2. As they are lessened for the 2-7 vs. 2 and likewise in the gain for hitting the same hands against the 7.

That is it, not much of a change game-set-rule to game-set-rule.

This is used as the Basic Reference for this game. As it is played differently with the count, that is deviating at points, all deviations from basic are based on rule variations in the differing games. Like wise the changes of strategy with respect to the count are indeed subtle, in this hand the NINE as well as others, see +/- Count and the Compare Differing "game-rule-sets" Basics.

Here are the links to all the differing Basic Strategies for Games played in L.V. and elsewhere like Reno and Cruise Ships. Take the time to flip thru the various links to see a dynamic visualization of the changes the rules have on the way one plays. Also look at this Comparison prepared so you can better appreciate the differences for all the play and how they change with respect to the rule variations.