Maybe we can contribute ideas what stats to track for future updates?
One possibility is to track sectors around the number which hit last. E.g. sectors of length 3,5,7,9... although the cycles/probabilities for an equivalent EC bet may not be exact.update:
For 3 number sector : same as street - at least one hit in 8 spins, probability = 0.49
for 5 number sector: at least one hit in 5 spins, probability = 0.52
for 7 number sector: at least one hit in 3 spin, probability = 0.47
For larger sectors you need to look at "at least X hits", where X > 1, because if X = 1 the probabilities aren't close enough to EC.
For 9 number sector at least three hits in 11 spins, probability = 0.52
For 11 number sector, this is similar to a dozen/column, so at least 2 hits in 5 spins, probability = 0.47.
For 13 number sector, at least 3 hits in 7 trials, probability = 0.47.
For 15 number sector, at least 3 hits in 6 trials, probability = 0.47.
I think that's far enough. Any more numbers will reduce profitability.