1-6 play the street4.5.6. for 16 spins. if you win give it another spin with the same numbers.
7-12 play the street19.20.21. as above.
13-18. play the street10.11.12.
19-24. play the street7.8.9.
25-30 play the street 16.17.18.
31-36. play the street22.23.24.
good luck
i tried this flat betting for ten spins on 00-0 roulette and finished infront. one swallow does not make a summer.