I have been using this method with some success..
This is a dozen and column method
Similar variations of this might be present on the forum but here's how mine goes:
We wait for any one dozen/column to follow hit-miss-hit pattern. Then from the 4th spin we start betting against the dozen or column that came before the last spin or in other words against second last decision.
If we see a pattern like 1,1,1,1 we stop betting and wait for the pattern to end