Freddy Nock, the famous swiss artist, rides the Stromer ST1 on a highwire. No safety rope, no parachute, just skills.
The video is slightly hidden, but give him a try. http://www.20min.ch/videotv/?vid=450353
The approx. 500m highwire with ascending slope:
OK, I know, so this is a US-forum. Therefore I have to remind you: Don't do this at home! The artist is a professional. See http://freddynock.com