Michael
I'm pretty excited for the flow videos! In my opinion, nothing is better for BJJ conditioning.
BJJ players get plenty of high intensity output in our training. If athletes aren't doing some form of steady-state work in their training off the mats, they're leaving a lot of potential on the table. All BJJ players can use more thoracic extension and shoulder rotation work (like your shoulder video) in their lives! My internal rotation sucks, and I think this is exactly what it needs.