Too many threads have been made about this thing, so i tracked down a copy of Tee Time (Kriss Ostness, the guy who recently made TBC) from about 5 years ago. I made a couple of videos for you all. The first is Leviathan Gap itself. Supposedly, its around 150-155, and to me, it definently looks like it. Unsure of the skier however.
I thought you all might want to see some more, so I made clipped the crash segment of the movie and uploaded it here:
The music is by Abba Teens - Mamma Mia
Sorry about the quality, I know it sucks, but its the best I could get. This video has some other cool stuff, like Chris Collins tripple backflip attempt on pyramid, Candides crashes on Chads and some other crazy stuff, including side by side triple backflips. Check out TBC to see some of these gaps 5 years later. Anyways, hope this clears some of the confusion.