Have an idea for an even bet system if anyone would like to test. Based off breaking patterns.
Consider the following hits on Red/Black:
RRBRRRRBRBB
Looking at black only, the first 2 hits of black were followed by red. So, after 2 patterns the same bet for black to repeat after the third hit. If red hits, then wait on black to hit again then bet on it to repeat. Use a +1/-1 progression. This can be done with any even money bets.
In the above example, betting for black to repeat after to single hits would have won.
Looking at red, we have to series of red hit with 2 or more hits, so we'd bet black after the last red to break the pattern.
Hope this makes sense. Seems pretty safe to use a progression on this from my testing.