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Use the five-spin slot strategy to play up to five spins at various slot machines. It's time to move on to the next machine if you receive non-0 wins. With the five-spin slot strategy, you are simply trying to get a taste of several machines rather than trying to win multiple times on one particular machine.
Again, you can't tell if a slot machine is due to hit. The reason is the same as before: each spin has a random outcome.