I too am a little confused by some indices.
I see Norm’s cvdata online index viewer for double down on 8 v 6 is TC >= 2:
https://www.card-counting.com/cvcxonlineviewer3.htm
Wong’s index in professional blackjack is 1 for dd 8 v 6
Other differences include
Double down 8 v 5 Wong: 3 Norm: 4
Double down 8 v 4 Wong: 5 Norm: 6
Hard hit 16 v 9 Wong: 5 Norm:4
Hard hit 12 v 6 Wong:0 Norm:-1
The 12 v 6 index of 0 surprised me the most since I’m used to using Norm’s -1 for that one.
The cvdata calculations there are for S17 6D DAS LS, and the site mentions it’s using half deck estimations and flooring.
Wong’s book mentions indices were calculated for S17 4D and truncated. I wasn’t sure if these were half deck or full deck estimations.
Since these are differences on indices that aren’t negative, except 12 v 6, are Norm’s considered the correct values here since they’re more specifically tailored?
Sorry to dig up the old post but I couldn’t find an answer and also have been wanting to know
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