Сама техника флипа.

http://www.snow-drift.ru/snow/17.html
[youtube]http://www.youtube.com/watch?v=lNTFhaIgmVk&feature=player_embedded[/youtube]
[youtube]http://www.youtube.com/watch?v=YaXYTirQzNI&feature=player_embedded[/youtube]
[youtube]http://www.youtube.com/watch?v=SQhnMugc9WY&feature=player_embedded[/youtube]