theory11 — Magic Tricks & the World's Finest Playing Cards
Yeah, I really want to see this in-the-hands card castle.
Jerry Cestkowski mentions him in the EoPCF in quite disparaging terms saying that while "he certainly deserves credit for inventiveness and ambidexterity...most of the stuff he does is light-speed, low-amplitude weirdness". I think his main issue is the speed. We know The Flourishman thinks all flourishes should be done slowly, which I personally disagree with for a lot of moves, so this objection doesn't bother me at all.
Mr Cestkowski says that he saw Popov "on part of a Michael Ammar tape, where Ammar travels to Russia". I hope this helps someone point me in the right direction for finding footage.