There are many kind of stragedies that you can apply for your slot games. Usually it's a stragedy about the basebet and raise basebet when you're losing. In slots, you can't choose the type to win so it's the only method need to manage. First of all, play with small bet is a necessary thing to do in slot games. Secondly, cause the odds of Slots isn't x2 all the time so you didn't have to raise it to double, just raise about 30% depend on which kind of slots you play. If you just play the same basebet then you will losing slowly till nothing left.