trigger: wait until 3 of the same Red/Black has hit in one dozen, bet them and every same color that hits in that particular dozen.
progression +1u bet for each new number of the same color that hits in the same doz.
for an example 3, 7, 12 Red has hit in first doz. these are bet. number 5 red hits, then +1u bet and number 5 is also bet... and so on
more spins...