Something that seems to be working on my actuals:
Treat each dozen as its own entity. Once 2 streets from any dozen hits, bet immediately on the other 2.
Here's a short example
20
11
3 ok that's 2 separate streets in dozen 1, so bet on streets 4,5,6 and 7,8,9
30
17 2 streets in dozen 2 so bet 13,14,15 and 22,23,24
29
0
20
22 Win on dozen 2
29
13
6 Win on dozen 1
So keep tracking as you go on, and once a dozen wins, then start tracking for that dozen straight away again.
Progression I use is 1111,2222,3333. stop-loss is if these 12 steps lose, incurring a loss of 48 units.
Here is a longer breakdown of the rules of play:
26
10
4 bet 1,2,3 + 7,8,9
27
24
9 Win
9
19 bet 13,14,15 + 16,17,18
1
2
18 Win
4 bet 7,8,9 + 10,11,12
3
8
1
7
10 Win
22
30 bet 31,32,33 + 34,35,36
11
18 bet 13,14,15 + 19,20,21
21 Win
25
31 Win
12
1 bet 4,5,6 + 7,8,9
8 Win
3
36
5 bet 7,8,9 + 10,11,12
34
5
20
26 bet 28,29,30 + 31,32,33
20
2
19
28 Win
2
34
6
15 loss on dozen 1. Bet 16,17,18 + 22,23,24
32 bet 25,26,27 + 28,29,30
19
29 Win
33
32
1
16 Win
13
More testing needs to be done on when to stop the progression and how many times a 12 loss comes about. Even with the loss, this session would've been a good profit win
BW