Winning or losing doubled-down blackjack hands can make or break a session. Basic Strategy dictates doubling when doing so has higher "expectation" or theoretical profit than other options.
Some players, however -- veterans who prize their wallet-sized gospel tracts as well as greenhorns who think it's all luck -- hit or stand when "D" is indicated, while others do the opposite.
Bettors who balk when doubling is decreed generally worry lest a loss would bust their budgets, and would prefer to win half as much than risk going belly-up. Solid citizens who double when less assertive action is advocated typically perceive they're in a strong position and think this is a clever way to exploit it...












