knock yourself out. had some luck with this one
Trigger: wait for one dozen not to hit for four (4) spins minimum, and when it hits, bet the other single doublestreet in that dozen not hit is bet.
to clarify this, each dozen consist of two doublestreets, as one of them hit, the other unhit one is bet.
progression: cyclic progression for a single doublestreet. +1u bet after five spins. -1u when hit (and that bet is kept for the next trigger)
for an example progression goes 111112222233333 if you're at 3u bet and get a hit, next bet is 2u...and so on
hope everything is clear
cheers
Luck was the word, i guess i was just lucky for 800 spins. i should have done more testing, sorry. betting for a cold ds was not the best idea. :/