Hi all! I wanted to say that at the roulette that you would not put (the street, a dozen, column, and other groups), it all depends on the percentage of this group.
I do not think we need to look any miracles in the combination group and another.
Around 1920 year Henry Chateau analized 56,534 spins for even money chance and got this results
13.786 - singles
6.915 -series of 2
3.442 - series of 3
1.737 - series of 4
etc.
another word
next step less approximately 2 times.
This statistic for Saliu system (thanks Madmax):
There were 707492 spins.
(example Saliu system +++---++-++-+++++++-++)
single minus 15521
series 2 48514
3 14598
4 4191
5 1114
6 292
7 64
8 16
9 3
10 2
every step approximately 2,5-3 times less, but we see after 6 step already 4-4,5 times. (sorry if little math mistakes)
We need to find so switch where next step will be more than twice for even chance etc.
Only so can win offen.
Any system is %
Sorry for english.