Full body variation of 531 Boring But Big. 4 days a week, alternating upper 531 with lower BBB (5x10) sets and lower 531 with upper BBB sets. 5/3/1 and BBB sets should stay the same, feel free to mess with accessory work. Aim for 25-50 reps of a push, a pull, and a leg or core movement. Reset or deload (not programmed) after 3 weeks. Typically want to use 80-90% of your 1RM as your Training Max, and can adjust it before starting the program based on desired difficulty.