Everything repeats, this is the law.
This is a 6 numbers bet, betting a group of 9 numbers, on half the side of the wheel (European wheel). So, what i noticed is that one group can repeat for a long time, and the opposite is also true: one group can fall asleep for a very long time, therefore, THIS system is about betting the HOT group of 9.
I had a 70% winrate, flatbet, so perhaps this mild +1/-1 progression will improve the result?
Procedure: Bet only one side H or L, for each time one color hit, Bet the same color numbers within the two unhit DS, +1u for each time a non-hit within the same H/L, -1u for each hit, (until reached a new high)
BR/Stoploss: 500u (played with 1u bets)
Wingoal: 500u