To echo what others said, especially thedude3737, this system wouldn't work out so well because of how varied a person's "game" may be on any given day.
For example, I met Giovanny a while back in SF. He happened to go 0/10 or so that day. If I didn't know about game and realize how that happens from time to time, maybe I would think he had no game? Obviously the man does, and I could respect and see that his fearlessness in approaching was more important than the actual results.
Or conversely, maybe what he thought about me that day. I had been on a bender drinking the past few nights, AND completely ill from a cold. If I wasn't just visiting and not had another opportunity I would have cancelled, but wanted to go because I was only in SF that weekend. Maybe he would think I have no game because he only saw a disheveled guy who was quiet that day.
Flip it on the other side. I was with Qwest a few days after meeting him when we flew into Kiev, and a 19yo girl in heels and dress showed up at the airport with a cake she baked for me. Does that mean I just slay pussy left and right? No, but it may look that way.
I could go on and on, but unless you hang out with and go out with a guy multiple times it's hard to get a good grasp of his game.
PS. I got an in-home demo of thedude's steak. It's as good as you imagine.