I always do this. If I made a profit with my deposit I only play with the profit. This the way I like to play most of the time.
By doing this I know I am not going to lose a lot of money because I only make one deposit each time I play.
Yes this is an excellent strategy but the drawback of this strategy that I personally always feel is that first of all getting any profit with your main bankroll is difficult and then once you get it you feel like you own that money, no matter if you won it.
So, when you loose that profit amount you will deposit back the original bankroll again and this continues unless you win too big with your profits or you loose all ( the latter has better chances
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Yeah that's one thing , one other thing , some website don't let you withdraw money if your gains are still less than your original deposit , so you'll be stuck until you'll win a bigger amount , for ex : You deposit 10$ , win 9$ , total 19$ , you want to withdraw 10$ -> they don't let you .
Other websites have a minimum cap for withdrawing set on 30/40$ .. So you'll be obliged to play with your deposit and profit ..
Moral of the story : choose well your bookies .