Chasing steam will get you kicked out of books. Why do you think that is?

Most people will win more by playing line moves and trying to bet off market numbers than handicapping, especially the major American sports. If you think you have a better understanding of how an NFL game will play out than the oddsmaker who is willing to take $100,000 bets on sides, then I don't know what to tell you. You're essentially saying that you're smarter than the entire world.