I played a lot on the RNG sites before the live wheels came online. It became quite clear after a while that there were certain trigger events that the casino software would look for in my play. Once these trigger events occurred the game would change and I would lose.
However, I found I could increase my winnings if I played my game over a number of casinos, sequentially. I would play my first spin a casino 1, second at casino 2 and so on. This would hide my progression and total winnings.