Here is a new site with lots of explanations about rev tricks
the videos are great - (even if the text is in french) - like a video with the camera on the rev' !
new videos each week from Fabrice Baldan - Well-Known French Flyer
http://www.revo-solution.com/
and the videos:
http://www.revo-solution.com/acceuil_videos_indoor.htm
http://www.revo-solution.com/acceuil_videos_outdoor.htm