It’s the only situation in which we don’t double down on a two-card 11. When the dealer stands on all 17s, we just hit. One big change comes when we have a two-card 11 and the dealer has an Ace face up.
Remember these changes at games of four decks or more where the dealer hits soft 17. That rule adds about two-tenths of a percent to the house edge, and we as players need to make a few adjustments. Nearly all low-limit tables, even those that use multiple decks, now have the dealer hit soft 17. Veteran blackjack players no doubt have noticed a change in the last few years.