Roulette Double Trouble!!

"Double Trouble" utilizes the Euler's progression and Euler is being associated with a familiar number: 2.7
Does it ring a bell?!

First phase: 3 units on LOW + 2 units on 3rd dozen, retain selection as long as it wins.

Second phase: When our 2 selections lose they will be converted to 2 individual progressions.
6 steps of Martingale for High, since it lost 3 units already skip the first 2 steps and continue like this:

1) 1 skip
2) 2 skip
3) 4
4) 8
5) 16
6) 32

For the 3rd dozen 9 steps, but since has already lost 2 units just skip the first 2 steps, its continuation:

1) 1 skip
2) 1 skip
3) 2
4) 3
5) 4
6) 6
7) 9
8) 14
9) 21

2 possibilities }

1) Both win on their individual progressions, return back to LOW 3 and 3rd DOZEN 2 units bet.

2) 1 of them only wins, or even both lose, whatever loses, when it loses continues to the large progression right after its initial position.
The winner of the individual progression remains on the same progression but now it will use the first 2 steps as well.

For 1 or both of them continuing to the major progression after a loss(es) from the 2 individual progressions, both will continue like this until 2 possibilities:

1) New BR high
2) End of the major progression for both

Read the Excel in order to become more clear and shoot your recommendations or questions if you have any.