matrix,
What d'ya think of section betting? I was once a croupier [in a former life!] and was prone to being a zero-section dealer, meaning more often than probability laws would dictate I would land in the 12 numbers either side of the zero. The Chinese knew it, and I got taken to the cleaners on a number of occasions, prompting the pit boss to ask me to "get a sandwich"
Other dealers had off-section spins or on-section spins. By that I mean they would land in those sections maybe 6 or 7 out of 10 spins. Usually the pit boss would handle the situation by putting me on roulette in the afternoons, when the bus drivers would be in spending their customers fares
I still know the sections and have used it to good effect on the very odd occasion that I frequent the casino.
I thank you.