For each dozen hit place two splits on the two unhit columns in the unhit doublestreet within that particular dozen,
when 4 splits are placed, use progression
1 1 1 1 2 2 3 4 5 6 8 10 13 17 22 28 36 46 59 76 98 126 162 208
when 6 splits are placed use progression
1 2 3 5 7 11 16 24 36 54 81 122 183 275
Played with 1u bets, highest step in progression step 7, (16u)
I made a short video: link:s://youtu.be/SsBUgqj1cJs