Interesting video - thanks.
I'd add a couple observations:
This guy doesn't have sunglasses. Never fish muskie without polarized glasses. You need to see the fish to know to go into a figure 8. Even anglers who do the figure 8 at the end of every cast still need to see down into the water column. Seeing following muskies and their body language is crucial.
His fly rod is interesting - more like a big switch rod. He strips with the reel under his arm pit much like some salt guys. Conventional tackle muskie guys have been using very long rods for years. Part of the reason for this is to figure 8 better. In this case, the guy's fly rod is very long and has an extended fighting butt that works as a grip for the figure 8. It's tempting to me to purchase a conventional muskie blank designed for a bait casting reel, and use it to build a custom fly rod.
Hhmmm...