The rules are : Split up to 4 hands, double on any cards, ENHC, DAS, Surrender on any cards(Read 3.4. However, compare to 3.11),And Splits and double loses mere original if dealer has BJ(3.10 and 3.14),
player rarely get adv off the top worldwide nowaday.
ENHC ---
ES10 , 6d +0.24%
lose orig bet to bj +0.11%
6d -0.54%
...........
simple maths
still a minus game anyway.