I was just re-watching some of the old uploads from 12 or 13 years ago, and it’s incredible to see how far Greg and Sergei have taken this. Does anyone else remember the original "Combat Acrobatic Training" (CAT) videos or the early kettlebell sequences shot back in the Red Bank days? It was such a raw, focused era of bodyweight conditioning and Systema principles. Before everything became "tactical," there was just this pure focus on the quality of movement and breathing—like that old video on thoracic spine mobilization that I still use as my daily go-to. It’s been a long journey from those early Russian martial art demos to the refined Combat Mobility System they’re teaching now. Who else here has been around since the beginning of the Underground Gym? Those old core training sessions with the Dragon Flags really set the bar for the rest of the fitness community back then.