This is a doubledozen bet (12 splits) played with a positive progression.
Procedure: Look at the history of spins and locate the last 3 hit columnstreets, Now bet all the other numbers (12 SPLITS) with 1u bets except those last 3 hit columnstreets. Spin until hit, when hit +1u bet on all 12 Splits and do one last spin win or lose, then STOP and re-track. (locate last 3 hit columnstreets anew) . Repeat procedure.
A columnstreet is for an example numbers 1,4,7,10
First test was played with 5u bets wingoal +500u, stoploss -500u
3/3 Games won
2 losses in a row, for me that's unacceptable