This is a display of the hardest balance and focus on the drum set I've never seen done prior to digging into it. Switching from one limb to another without repeating, without hitting 3 hits in a row and with no timing glitches is why it is so difficult. Many orders can work and more, in fact tons more won't work, or one would repeat one of the 24 limb pairings. This isn't allowed or one gets struck with lighting... that's the rumor anyway.