This betting system is very popular but requires access to many different books and is typically used with non spread sports but can be used with them as well.
Basically what you are looking for is a chance to bet the underdogs that the computer says is going to win and not just cover. Then you take them Money Line, you also look for huge odds in your favor on some dogs that the computer doesn't say is going to win, but its going to be close. But the odds are so in your favor you take them and then the Runline or Puckline with it, because when you hit them the payoff is huge. This system works well with Hockey or Baseball but have seen it work with basketball in certain situations.
A good example of this is when the Red Wings are on the road at -330 and you can find +280 on the home team and this happens to be a night when the software says the game should be close, that means you have about a coin flip chance to win +280. So its a good bet in that situation. The key is you don't always bet the underdog, just when the computer points them out as a close game, or them just winning. You need to be able to shop around for the best odds, so when you actually hit some of these opportunities you will get paid max dollars. If you can even be close to a 50% win ratio your profit margin will be huge.