Here's my method for the 'Stop' Trick. I'd love to hear your thoughts on it!
http://www.youtube.com/watch?v=hWAUlTdrCYc&list=UUU4Yl1XeXLMDWaDcEQPp4-w&index=1&feature=plcp
http://www.youtube.com/watch?v=hWAUlTdrCYc&list=UUU4Yl1XeXLMDWaDcEQPp4-w&index=1&feature=plcp