from observing the wheel-patterns it seems two clusters are formed direct opposite eachother on the wheel. This may just be my imagination i don't know. but i tried a build a system based on this phenomenon.
trigger: when two hits come in sequence within 4 pockets from eachother, bet the direct opposite 6 numbers on the wheel for 3 spins.
progression -none-
flatbet
Guess i had beginners luck from the start, now the best i can get is a neutral trend flatbet. perhaps a progression is needed.
second test, better luck. progression +1 after 6 spins, -1u when hit
2 tests won, 2 tests failed. that is too much for me, sry