I *think* I saw JJ at SES 05. If it was him, he rips.
I agree with JJ that a more upright upper body is preferable and imo, more balanced and efficient, as opposed to bending too far forward at the waist.
I like knees apart though, or at least able to act independently. Sometimes they end up together:
The main thrust of my separate the knees article was to get people out of the 90's style of riding with the back knee tucked firmly into the back of the front knee, and held there as if by velcro.