This is something that I was working on a few months ago.
It is not 100% mechanical and you have to wing it a bit. The results can be pretty good.
It is based on Dozens/Columns.
You need to record the results in pairs.
I will start with the dozens first.
1,1 = 1.
1,2 = 2.
1,3 = 3.
2,1 = 4.
2,2 = 5.
2,3 = 6.
3,1 = 7.
3,2 = 8.
3,3 = 9.
Now the columns.
A,A = 1.
A,B = 2.
A,C = 3.
B,A = 4.
B,B = 5.
B,C = 6.
C,A = 7.
C,B = 8.
C,C = 9.
I just downloaded some numbers from random.org and will give a quick example.
I will show what I mean with a single stream using dozens.
27) 3
28) 3 = 9
04) 1
21) 2 = 2
31) 3
19) 2 = 8
14) 2
33) 3 = 6
33) 3
03) 1 = 7
34) 3
29) 3 = 9
26) 3
12) 1 = 7
01) 1
22) 2 = 2
33) 3
22) 2 = 8
So you are probably scratching your head and wondering what's so good about that.
You need to pay particular attention to groups 2,4,7,8.
The 2 means the 1st dozen has went to the 2nd dozen.
The 4 means the 2nd dozen has went to the 1st dozen.
The 7 means the 3rd dozen has went to the 1st dozen.
The 8 means the 3rd dozen has went to the 2nd dozen.
These groups of 2,4,7,8 work excactly the same with the columns.
The 2 means the 1st column has went to the 2nd column.
The 4 means the 2nd column has went to the 1st column.
The 7 means the 3rd column has went to the 1st column.
The 8 means the 3rd column has went to the 2nd column.
What I have found is these groups of 2,4,7,8 can really clump together.
What I do is run 4 streams of data with the dozens and columns.
Let me show you how I would now turn the dozens above into 2 streams.
　
27) 3
28) 3 = 9
04) 1      = 7
21) 2 = 2
31) 3      = 6
19) 2 = 8
14) 2      = 5
33) 3 = 6
33) 3      = 9
03) 1 = 7
34) 3      = 3
29) 3 = 9
26) 3      = 9
12) 1 = 7
01) 1      = 1
22) 2 = 2
33) 3      = 6
22) 2 = 8
You can see how the 2,4,7,8 groups clumped nicely in the first stream.(6 hits in 8 groups)
They hardly said boo in the second stream.
I do excactly the same for the columns and that's what gives me 4 separate streams.
27) C
28) A = 7
04) A      = 1
21) C = 3
31) A      = 7
19) A = 1
14) B      = 2
33) C = 6
33) C      = 9
03) C = 9
34) A      = 7
29) B = 2
26) B      = 5
12) C = 6
01) A      = 7
22) A = 1
33) C      = 3
22) A = 7
The first stream did not produce much.
The second stream produced 4 hits in 6 groups.
There is nearly always one of these streams firing away with a nice steady run of 2,4,7,8.
The 2 and 4 are the best for actual betting because you are only placing one chip.
The 2 means you would be betting for the second result of the group to be either the 2nd dozen or 2nd column.
This obviously depends which one you are playing at the time.
The 4 means you would be betting for the second result of the group to be either the 1st dozen or 1st column.
The 7 means you would be betting for the second result of the group to be either the 1st dozen or 1st column.
The 8 means you would be betting for the second result of the group to be either the 2nd dozen or 2nd column.
Now obviously you would know what to bet for the second result because of what comes out in the first result of a group.
Let's say the 2,4,7,8 groups are clumping in the dozens and you want to bet.
The first result of the next group is the 1st dozen. Well you can only win on a 2. So you would back the 2nd dozen.
Let's say the first result of the next group is the 2nd dozen. You can only win on a 4. So you would back the 1st dozen.
Let's say the first result of the next group is the 3rd dozen. This is slightly different because you can now win on the 7 or 8.
So you would back the first dozen and the 2nd dozen.
Needless to say it works excactly the same way for the columns.
I will let you digest that and feel free to ask any questions.
I will post up more examples and go into more details as well.
There are ways to narrow things down further which I can go into later once the basics are understood.
　
cheers.

Another example.
26) 3
17) 2 = 8
30) 3      = 6
35) 3 = 9
13) 2      = 8
30) 3 = 6
11) 1      = 7
35) 3 = 3
20) 2      = 8
29) 3 = 6
21) 2      = 8
06) 1 = 4
14) 2      = 2
15) 2 = 5
22) 2      = 5
24) 2 = 5
17) 2      = 5
06) 1 = 4
Those were the dozens.
　
Here are the columns.
　
26) B
17) B = 5
30) C      = 6
35) B = 8
13) A      = 4
30) C = 3
11) B      = 8
35) B = 5
20) B      = 5
29) B = 5
21) C      = 6
06) C = 9
14) B      = 8
15) C = 6
22) A      = 7
24) C = 3
17) B      = 8
06) C = 6
These streams produced 5 consecutive wins for the 2,4,7,8 in the second stream of the dozens.
Here is where things can get interesting however.
Look at the columns.
You will notice column A is hardly appearing at all.
So some of those wins on the second stream of the dozens could be reduced further to betting just a few splits.
Let me show you how it's done.
Look at the dozens and you can see where the first 6 appeared.
You are in the middle of a nice run in the second stream. It's produced groups 8,7,8,8 for 4 wins in a row.
Now following the rules would see you play the second dozen because you are looking for group 2 to appear.
No A column is in sight. You can just play the 14/15 split, 17/18 split, 20/21 split and 23/24 split.
This still covers the second dozen but you are leaving out the 13,16,19,22.
These 4 numbers all belong to column A in the second dozen. 14 appeared bringing with it group 2.
Some of the winning runs I have had just betting 4 splits with this is unbelievable.
There is nearly always 1 stream out of the 4 producing the goods.

cheers.

This is s good example from this morning. It shows a few different things that I will explain.
28) 3
03) 1 = 7
18) 2      = 2
04) 1 = 4
12) 1      = 1
28) 3 = 3
19) 2      = 8
11) 1 = 4
22) 2      = 2
14) 2 = 5
08) 1      = 4
14) 2 = 2
29) 3      = 6
14) 2 = 8
05) 1      = 4
Those were the dozens.
And now for the columns.
28) A
03) C = 3
18) C      = 9
04) A = 7
12) C      = 3
28) A = 7
19) A      = 1
11) B = 2
22) A      = 4
14) B = 2
08) B      = 5
14) B = 5
29) B      = 5
14) B = 5
05) B      = 5
The 2,4,7,8 was performing well in the dozens.
The first stream went 7, 4, 3, 4, 5, 2, 8 giving five out of seven.
The second stream went 2, 1, 8, 2, 4, 6, 4 also giving five out of seven.
The columns produced nothing of note. But this is what often happens.
You will get one or two good streams most of the time.
You can see C column never appeared again after the number 12.
So here is where you could play 4 splits (8 numbers) instead of the actual dozens themselves.
Another thing I want to show is what happened when the number 11 appeared.
You can see that you would have had a hit with group 4 in the first stream of the dozens.
You would have also had a hit with group 2 in the first stream of the columns.
This is a situation which can also happen frequently and allows you just to bet 4 numbers.
You would be backing for the first dozen to appear and also the second column to appear.
All you need to do is bet the intersection which would be 2,5,8,11. The hit came on 11.
I have had runs of 4/5 hits on the bounce with this and it can work really well at times.
I said at the very top of the thread that you need to wing it a bit with this.
What I mean is you just need to patient and wait for one of these 4 streams to start delivering.
I have seen a stream deliver 13 group numbers in a row.
There are other times when it will hit 3/4 of them, miss one, hit another 3/4 of them etc..
Stay with the strongest stream and be disciplined.
I can't remember ever losing money playing this way in a casino.
It is something I use sparingly admittedly but it has always worked out for me.
　
cheers.

I decided to run this through 150 spins just flat betting and playing on every spin without using any triggers.

It's only a small sample but the results were not bad. It reached a nice profit after about 50 spins and then dipped before holding it's own for the next 100 or so spins.

I will conduct some more tests this way and see how it stands up.

Thanks for sharing!