In Flight magazine 1954, Walter Neumark predicted a time when a glider pilot would be "able to launch himself by running over the edge of a cliff or down a slope ... whether on a rock-climbing holiday in Skye or skiing in the Alps.”

. . . . hesitation or incorrect timing could put you in big trouble, confront you with the most dangerous paragliding circumstance. I’ve never done this manoeuvre myself, but I know how it works.