It doesn't matter how big your final bet is with Martingale, you get your initial bet back, that's it. There are some variants but it is not the OP case.
Sometimes it's not just about applying a strategy, people complain a lot about martingale, but they have no idea of additional information needed, they just understand that it's just doubling the bet and you winner.
In the case of blackjack, like roulette, they are successful but because you have a bankroll and an adequate bet, also do not forget to manage the odds, it is important to be more successful and avoid unnecessary long losing streaks that have a psychological effect on negative, depending on how experienced you are or how adequate your banking is.
I do not use martingale because of the size of my bet (Blackjack), it would break my bankroll, sometimes I have lost up to 6 times in a row and the calculations do not give me to apply it, it is easier for me to lose 7 times and then recover at long time.
It is a classic mistake of those who apply Martingale to think I have lost "x" times this one that comes if I win and that is when the variance does its thing.
In the case of roulette, it does not accept "skills", but in Blackjack you can "change" those odds of losing.
Then, retreat, stand, etc. they make the difference of not taking a loss +, that they will make the next bet put you in limits that you do not manage and then they make you play badly, betting $500, $1000 in a BJ hand when you are not used to that size of bet, so it distracts you.
In any case, I think that everything always depends on the scenarios and what you want, so wagers, a winning streak, etc.
In any case, always do the game calculations and be aware that if the variance decides that day to change things, if your limit is $1,000, a variation of one more loss means that you should have $2,000, by the way, if you have the capacity for large bets, find out what limits maximums the table has, "you can't double the bet", it is "fatality
Mortal Kombat : ) for the strategy.
Considerations:
- Martingale is a game strategy, it is not a 100% winning ticket as they want you to understand, the strategy works for any scenario, not for any individual.
- Learn to play BJ.
- Use play money with that strategy before using your real money.
- Know and study the odds of the BJ.