None of my references have the exact indexes for the 2-deck game. Braun gives them for the 1D and 4D and says the 2D indexes are "roughly in between."

So I set about finding them on my own, but came up with a question.

When running a test using a computer random shuffle, I found (for example and purposes of illustration) that, in the 2-deck game with 55-card penetration, the average number of cards left when the TC per full deck is +2 but less than +3 is 69.632; and for a TC of +4 but less than +5, the avg # of cards left is 63.765.

Now, I understand that +2 is +2 and +4 is +4, but it seems to me that the more cards (of each value) left in the shoe increases the number of permutations of possible sequences of player hits and of dealer hands.

It strikes me that this might make the dealer somewhat more unlikely to break, as with more cards in the shoe he would have more ways to make a hand. It also strikes me that this effect would be more pronounced with low counts than high counts.

This leads me to my question: Is there any potential benefit in using the actual average number of remaining cards for each TC? Or, is it adequate (equally accurate?) to just use a set number of remaining cards for all TCs? And, if so, is it better to use 52 or 104?