They may be able to offer recommendations based on their experiences working at the casino. Ask casino employees: Slot attendants and managers at Plainridge may have inside knowledge about which machines are the best.This is because the casino makes more money from high-denomination machines, so they can afford to offer higher payout percentages. Check the denomination of the machine: Generally speaking, machines with higher denominations (such as $5 or $10) have higher payout percentages than machines with lower denominations (such as 25 cents or $1).Look for machines with payout percentages of 90% or higher for the best chances of winning big. Look for machines with high payout percentages: Plainridge offers a variety of slot machines with different payout percentages.While there is no guaranteed method for finding the best slot machines at Plainridge, there are a few tips and strategies you can use to increase your chances of winning big: Plainridge offers a variety of slot machines with different payout percentages, and some machines are known to have higher payouts than others. Selecting the Best Slot Machines at Plainridge However, it’s important to remember that these percentages are based on long-term play and are not a guarantee of immediate winnings. Slot machines with higher payout percentages are known as “loose” machines, and these machines are more likely to pay out winnings over time.