I think I read about it from a golfer in a magazine, tried it, and it seemed to work for me.
A lot of people, when the market was hot, bought a lot of properties, and now they're having a hard time selling them.
I've heard that you should stand whatever your height is away from your ball, but I generally stand 6-10 feet behind the ball.
I use a wedge. But only because Brett always is already holding the putter.