Her plan was to play during off-peak hours, when she thought there would be fewer players adding to the jackpot pool, increasing her chances of striking it rich. slots io seriösResearch & strategy are beneficial. A couple that journeyed across the nation to different casinos in pursuit of high RTP slots provides another gripping story. They looked closely at each machine's payout history & concentrated on those that had a history of producing sizable returns. Luck's Role in Slot Machine Gaming.