Karel is also the author of the Fluid BJJ book, Digitsu video series, Roll with the Fox and Anti Virus YouTube series, Fundamental Armbar Mechanics on BJJ Fanatics, and is regularly featured on the Tristar Gym YouTube channel with renowned MMA coach, Firas Zahabi.
As promised, here is the link to the unofficial Silver Fox Technique Guide I created, it's an encyclopedia of Fox's techniques and philosophy that is actively updated. I created and update the technique guide as a thank you to Fox, Enrique, Mike, and the Anti Virus Tribe.
I had such a great time with Fox, his humor and depth of knowledge draws you into his universe. Enjoy, I think you're going to love both this part 1 and subsequent part 2 with The Silver Fox.