In this episode of Slots and Locks, Mello and Tim explore the evolution of slot mechanics by contrasting two legendary titles. They begin with NetEnt's 2010 classic Gonzo's Quest, which introduced European players to cascading reels where stone blocks fall rather than spin. The conversation then shifts to High 5 Games and their 2008 hit Da Vinci Diamonds, now owned by IGT, which trademarked the tumbling reels feature. This mechanic created the illusion of an infinite spin, allowing symbols to disappear and be replaced by new ones within a single wager. The hosts find humor in the comedy of perceived value, noting that while players feel like they are getting more for their money, the underlying math remains unchanged. Even as multipliers climb and screens fill with animation, Tim reminds listeners that only the symbols are tumbling while the house edge stays firmly in place.