Trigger: wait until black-odd, black-even, red-odd, red-even straight up numbers has hit for 3-4 times in a row, then bet for the opposite.

for an example red-odd straight up hit 3 times in a row ---bet all red-even straight up numbers

trigger can be played for 3 or 4 hits.

progression -none- or +1u for each cycle loss (one cycle for 8 numbers is 4 spins, one cycle for 10 numbers is 3 spins) -1u when hit