A vertical swing drill with the start of your turn. Stay tall and drive off your plant foot, while reaching up for the bars. With your tail leg (or plant foot ) behind, swing it forward fast to a vertical position. With both legs going up start turning the hips or starting your turn. ( 2010 with John Cook)

Vertical Swing Vaulter Magazine
FROM: http://www.youtube.com/watch?v=RuHArZ0EsaQ