Brian Edwards — 58-time IBJJF gold medalist, two-time Masters World Champion, three-time Pan Masters World Champion, black belt under Tim Jones, founder of Swamp Fox Jiu-Jitsu, 19 years on the mats, hip replacement at 50, and still competing — on why midlife is your second prime and the only thing worse than not training is overtraining.

Michael Cragholm — retired Marine, Purple Heart recipient, Battle of Fallujah veteran, BJJ black belt, founder of Space Coast Mobile Jiu-Jitsu and creator of Grapple App — on the don't-get-slept-in-front-of-your-family starter pack, the Zach Morris timeout, and why consistency is the most intense thing you can do.

Coach Manny Alonso — professional kickboxer, MMA fighter, 18 years in jiu-jitsu, founder of Maca Martial Arts in Austin, Texas — on the four golden rules, the goldfish grip, why staying on top ages better than anything else, and what it means to build a gym around pure vibe.

Professor Larry Shealy — 4th degree black belt under Rigan Machado, founder of Hendo BJJ, co-founder and president of the Mach5 BJJ Union — on being introduced to jiu-jitsu by Hickson Gracie himself, dropping dead on his own mats in 2009, and why the mat is where you learn that yesterday doesn't count for anything.