Quote Originally Posted by fullearlysurrender View Post
You cannot double after splitting aa. If dealer ends up with blackjack you lose all of your additional bets with the exception of splitted aa (only lose one bet). Apologies for not making this clear from the start. Late surrender is not available, only full early surrender.
I think gain from losing only original bet rather than lose all is for split A-A once = ~.0251%

6 decks, H17, SPL3, DAS, SPLA1, HSA, NDASA, surr V 2-9, ES10, ESA, ENHC
EV = ~.1667%

Split A-A once versus all up cards if ENHC: EV = +59.03%
Split A-A once versus all up cards if OBO: EV = +63.44%
Gain for split A-A once if OBO instead of ENHC = 24/312*23/311 * (63.44%-59.03%) = .0251%

EV if ENHC = + .1667%
EV if ENHC except OBO for split aces once = .1918%

k_c