My strategy is to play at 49.50% win place bets.If win I don't make any change but if lose I just double my next bet. I make base of 11 before starting. This strategy works for me 99% because nothing is 100% in gambling.
Basic martingale..you will be busted for long run.
But if you say that it is working 99% for you, means that you're a wise gambler. You know when to stop before busted..
i think so basic martingale get lead to the busted but if you are lucky and have your lucky day with knoweledge when to stop before the house edge take back all your winning from you, that strategy works with only much big bankroll and very low base bet.