9 vs 7 indices

[JR]

Not a big deal, but the indice for 9 Vs 7 on this site is 4, but in Professional Blackjack it is 3. How come? Thanks in advance.

 

[The Mayor]

I use...

9 vs. 7 is +7 (in Halves).

Posted are the indices generated by a sim using Wong's own PBJA software. I don't think the difference in EV between doubling 9 vs. 7 at +3 or +4 Hi-Lo will buy you a cup of coffee over a lifetime.

--Mayor

 

[zengrifter]

Use +4

 

[jp]

index differences

+4 is the risk averse index for 9 vs 7. It is the "safer" index since risk is factored in. There is a table in _Blackjack_Attack_ with some risk averse index numbers. I don't know if there is a table with more numbers available.

 

[Sonny]

+7 for Hi-Opt II

 

[zengrifter]

+8 for ZEN

 

[SammyBoy]

+7 for AOII as Well

 

[Cyrano]

ZG..Trueing to 1 deck?

 

[zengrifter]

Yes, (RA)