I was out with a friend this weekend and all of his shots were tending to group to the left. I remember someone posting a chart, kind of like a target divided up like a pie, that showed if your shots are going here, you are doing this, and if your shots are going there, you're doing that, etc. It gave you a diagnosis of what you were doing and why it was being caused. Anyone have a copy of this they can post?

Yes, I have one.  

http://www.tackdriver.com/pix0703/correction.jpg

there you go