Here are some C-D indices for Insurance.
In 2008 I had published a work similar to this, although at that time I used an algebraic formula and insurance EORs.
On this occasion the indices were calculated through combinatorial analysis.
The indices are floored and the division by remaining decks is exact.
BTW, all the indices were verified by simulation.

Enjoy!

Sincerely,
Cac

Code:
---------------------------------------------------------------------------------------------------------------------

T = Ten
A = Ace
Z = 7,8,9
L = 2,3,4,5,6

1) 1D, Hi-Lo

+----------+-------+-----+----------+----------+----------+
|   Play   | Decks |  CR | TC Index | TC Index | TC Index |
+----------+-------+-----+----------+----------+----------+
| Generic  |   1   |  20 |      2   |    1.4   |   1.36   |
+----------+-------+-----+----------+----------+----------+
|    AA    |   1   |  20 |     -3   |   -2.5   |  -2.42   |
+----------+-------+-----+----------+----------+----------+
|    AT    |   1   |  20 |      1   |    1.1   |   1.18   |
+----------+-------+-----+----------+----------+----------+
|    AL    |   1   |  20 |      0   |    0.0   |   0.00   |
+----------+-------+-----+----------+----------+----------+
|    AZ    |   1   |  20 |      0   |   -1.4   |  -1.37   |
+----------+-------+-----+----------+----------+----------+
|    TT    |   1   |  20 |      3   |    3.0   |   3.05   |
+----------+-------+-----+----------+----------+----------+
|    TL    |   1   |  20 |      2   |    2.4   |   2.41   |
+----------+-------+-----+----------+----------+----------+
|    TZ    |   1   |  20 |      1   |    1.3   |   1.33   |
+----------+-------+-----+----------+----------+----------+
|    LL    |   1   |  20 |      2   |    1.9   |   1.92   |
+----------+-------+-----+----------+----------+----------+
|    LZ    |   1   |  20 |      1   |    1.1   |   1.10   |
+----------+-------+-----+----------+----------+----------+
|    ZZ    |   1   |  20 |      0   |    0.0   |   0.00   |
+----------+-------+-----+----------+----------+----------+

2) 6D, Hi-Lo

+----------+-------+-----+----------+----------+----------+
|   Play   | Decks |  CR | TC Index | TC Index | TC Index |
+----------+-------+-----+----------+----------+----------+
| Generic  |   6   |  78 |      3   |    3.0   |   3.03   |
+----------+-------+-----+----------+----------+----------+
|    AA    |   6   |  78 |      2   |    2.4   |   2.39   |
+----------+-------+-----+----------+----------+----------+
|    AT    |   6   |  78 |      3   |    2.8   |   2.83   |
+----------+-------+-----+----------+----------+----------+
|    AL    |   6   |  78 |      3   |    2.7   |   2.75   |
+----------+-------+-----+----------+----------+----------+
|    AZ    |   6   |  78 |      3   |    2.6   |   2.58   |
+----------+-------+-----+----------+----------+----------+
|    TT    |   6   |  78 |      3   |    3.3   |   3.29   |
+----------+-------+-----+----------+----------+----------+
|    TL    |   6   |  78 |      3   |    3.2   |   3.19   |
+----------+-------+-----+----------+----------+----------+
|    TZ    |   6   |  78 |      3   |    3.0   |   3.02   |
+----------+-------+-----+----------+----------+----------+
|    LL    |   6   |  78 |      3   |    3.1   |   3.10   |
+----------+-------+-----+----------+----------+----------+
|    LZ    |   6   |  78 |      3   |    2.9   |   2.93   |
+----------+-------+-----+----------+----------+----------+
|    ZZ    |   6   |  78 |      3   |    2.8   |   2.77   |
+----------+-------+-----+----------+----------+----------+