Maybe this could work....(?)
Procedure: Wait for a hit in column 1 or 3, then bet one corner-bet within the same doublestreet hit within the 2 unhit columns, also bet 2 streets on the second doublestreet within the same dozen (see pic) also bet 3u on each of the other 2 unhit dozens.
Now, there are 3 numbers that could lose (the unbet split & zero), and 6 numbers that could win (the 2 streets bet).
Progression: double TWICE for each loss. This progression may seems to be crazy,... most losses i've seen so far is 3 losses in a row. im sure it could go beyond that...anyway
Bankroll needed(?) to cover 3 losses in a row a minimum of ~200u is needed
wingoal +50u, playing with 1u bets
your a very creative guy ignatus!