ENHC surrender 88 vs 10 or A

[Cacarulo]

When playing ENHC dealer wins all rules (where the dealer doesn't check his hole card on a potential blackjack and wins any double and split stakes), the CVBJ game strategy tables for HiLo with I18 & F4 indexes on a 6 deck game show surrender on 16 but hit on 88 (as 88 doesn't split vs 10 or A due to the dealer taking all).

As well as the tables, the game itself flags an incorrect play when surrendering 88 vs 10.

Why would 88 be considered worth hitting whereas any other 16 is surrender? This seems odd as I would have thought any pair should be treated as its value after the split decision has been ruled out. I note that there are some exceptions to this on 1 or 2 deck games due to effect of removal, but don't understand why this wouldn't be the case for shoe games.

Hi,

The correct play is to surrender. It's probably a mistake from the books. That's why I prefer to generate my own indices.
CVDATA is ideal for that.

88vT
Standing  =  -57.28258585202567%
Hitting   =  -57.14495014054624%
Doubling  = -114.28990028109247%
Splitting =  -61.59194021860972%
Surrender =  -50.00000000000000%

+------------+-----------------------+-----------------------+-----------------------+-----------------------+-----------------------+---+---+
|     TC     |      Probability      |        Standing       |        Hitting        |        Doubling       |        Splitting      | 1 | 2 |
+------------+-----------------------+-----------------------+-----------------------+-----------------------+-----------------------+---+---+
|          4 |   0.01974806127380787 |  -0.59531532343688132 |  -0.62381031431915668 |  -1.24762062863831336 |  -0.68317688747715444 | R | S |
|          3 |   0.03473402679886555 |  -0.58986105431321612 |  -0.61264474598452634 |  -1.22528949196905268 |  -0.66928458419500958 | R | S |
|          2 |   0.06104036524316535 |  -0.58472863759596605 |  -0.60140079647713984 |  -1.20280159295427969 |  -0.65439664928646779 | R | S |
|          1 |   0.11047331143280217 |  -0.57980288961764093 |  -0.59000790950311000 |  -1.18001581900621999 |  -0.63914411857573028 | R | S |
|          0 |   0.23473474578323381 |  -0.57485136605034048 |  -0.57769918362515549 |  -1.15539836725031098 |  -0.62326350752766069 | R | S |
|         -1 |   0.21114571608455926 |  -0.57096202746007096 |  -0.56743817117684892 |  -1.13487634235369783 |  -0.61003201959906539 | R | H |
|         -2 |   0.13521587918273845 |  -0.56703238850362414 |  -0.55689460666950941 |  -1.11378921333901881 |  -0.59572638531686639 | R | H |
|         -3 |   0.07350057638861991 |  -0.56310981050897779 |  -0.54544230794828474 |  -1.09088461589656949 |  -0.58066056981744185 | R | H |
|         -4 |   0.04250945098179275 |  -0.55944185302575089 |  -0.53393429969462913 |  -1.06786859938925827 |  -0.56583858103780116 | R | H |
|         -5 |   0.02320500815022794 |  -0.55609874199647646 |  -0.52232714991080986 |  -1.04465429982161973 |  -0.55134942611015958 | R | H |
|         -6 |   0.01359266757379409 |  -0.55305019287844459 |  -0.51077218697565274 |  -1.02154437395130548 |  -0.53726729697468634 | R | H |
|         -7 |   0.00737994056577261 |  -0.55031357678402881 |  -0.49901664218854180 |  -0.99803328437708361 |  -0.52335318489494609 |   | H |
|         -8 |   0.00417153670028487 |  -0.54786679594704168 |  -0.48724208067799479 |  -0.97448416135598959 |  -0.50973338394046075 |   | H |
+------------+-----------------------+-----------------------+-----------------------+-----------------------+-----------------------+---+---+

Note that the surrender index for 88vT is "-6" and if surrender is not allowed, you should stand if the index is greater than or equal to zero.

Sincerely,
Cac