Check out the Volatility
Another pro tip that can help you record more wins with free slots is determining the volatility of the slot. You can refer to this as the risk level if you wish. The volatility of a game measures the risk that crops up when a player is playing the slot. A game with low volatility means that there are higher chances of recording more frequent smaller wins. If a slot has high volatility, it implies that wins are rare, but they are more significant.