That is one nasty sound in the vid. At loon on sat patrol was coming through the flats by the Gondi at Mach one dragging a sled and almost knocking people down. The bag was pulled all the way over the skiers face but as they went by I and a dude next to me both got a look at his face as you could see into the open end. We both said "I think he's dead" at the same time. Minute or so later another sled came by at a normal pace with another guy in it. He had a huge bandage on his forehead. I've googled stuff today but thankfully no reported death at loon. Scared the crap out of me though, seeing that guys face