This is a 9 numbers bet. Have been lucky so far. (What's new!?!) ;D
Trigger: A switch of colors. Now, bet 9 numbers as that same outcome(color). Look at the history of spins and locate the last 3 doublestreets hit by that same color. (Those are NOT bet!) But the remaining unhit 3 doublestreet are bet with 9 numbers (3+3+3) of the same color.
Progression: 1 1 1 1 2 3 4 5 6 STOP
From my first testing, i never lost the progression-line once...
Played with 5u bets (wingoal +1000u, stoploss -1000u)
Bankroll needed
200u playing with 1u bets
1000u playing with 5u bets
5/5 Games won
7/10 Games won
Not good, Not bad... somewhere in between perhaps?