eh, not really my thing. Yeah, it looks cool, but I feel like they're doing it just for that reason, as a performance. And who set the ropes up for them in the first place? Unless they rapped down. I'm not saying I could do this, but going back to what was said earlier, it's just not my cup-a. Then again, who am I to determine what you do dangling off of a rope.
Nice displays of the conservation of angular momentum though.
Thanks for sharing.