I usually look at the results with the same settings. I played a little at one roulette, then at another. First, on standard settings, I do a test without bets. Just looking when the win comes. If the gain comes up to the 11th spin more often than between 11-17, then the settings are in order. This is what support says.
I just go through the roulettes and the available settings, and where the result is optimal, I start playing. In principle, nothing complicated, only it takes time to prepare to choose a game table.