First, let me explain something. We know that any ,one, number has odds of 1000:1. This is the case whether the number is a single, double, or triple. This all has to do with Probability Theory. A specific double would have the same odds as a specific single. This should tell you something. It means that you don't want to stick with playing just one number. You want to play more numbers to better your odds. This falls right in line with the fact that the more numbers you play the better your chances. In effect, we want to move from individual combos to group-level play. It all has to do with tracking and playing groups of numbers.
So, what numbers? You have to do a systematic breakdown of the numbers. This is a breakdown that would not be based on hot/cold/overdue or anything like this. The first breakdown is already done for you. This has to do with the ,inherent, difference between single combos and doubles. What is the probability of getting a double and ,also, what is the probability of getting a single combo? It's no longer 1000:1 odds. This is due to the differential between these two groups of numbers. This is the bigger picture that makes the difference. The odds change when considering numbers on a group-level basis.
We know that single combos come out more often. Obviously, you'll want to stick with single combos to win and make money more often. This ,essentially, means not mixing up doubles when playing single combos. In other words, you'll want to keep them separate.
A good example of a systematic breakdown is the 120 Core System. Everyone should check it out to get an idea of what is involved. This is a breakdown based on how many even and odd digits there are within combos. The numbers are broken down into groups and then these groups are tracked. In this sense, the system bears a resemblance to my own.
What does group-level tracking come down to? It means that you're no longer concerned with trying to pin-point winning numbers. You play the entire group with the expectation that the winning number should be within the group you play. This is because you just don't know which specific number it will be until it has ,already, come out.
This is ,basically, the answer to beating the game. But, how you manage it is key to making or breaking it. If you want to make money more often then you want to ,within reason, cover as many numbers as you can each time. This is just how it goes.