Interesting.
I like to ONLY track the position of 1 number. The others can be arranged in different orders. Think about it... what are the chances that three of the other scenarios/positions are going to line up? That's why the majority of the time that winning ticket is a box... focusing on too many variables.
Say one of the positions has been EVEN for several drawings. Only play an ODD number in that position (try to eliminate 2 of them logically). You'll have 3 digits to worry about after that. One of the other digits should be the same Even/Odd. If that odd number shows up and you played the other 3 in different positions, then it's highly likely that you've got a straight winner. Now knowing the other pair is the second half of the equation.
If you REALLY pay attention, it's obvious that two digits usually show up together. So then it's just comes down to waiting for the right time to play the situation out without losing the bankroll, or giving up. It bites to watch it after the fact. If you play this way then two digits should come automatically, the other should match the "target" digit (Eve/Odd), and the last one is an educated guess. The order should be very close if not correct.
Str8$ 2.0
Play to win!