I'm toying with the idea of a double progression. It takes an average of 15 spins to get 3 reds in a row, and most of the time it happens in 30 spins.
Progression 1:
[2, 2, 2, 2, 3, 3, 3, 4, 4, 5, 5, 6, 7, 8, 9, 10, 11, 12, 14, 16, 18, 20, 22, 25, 28, 32, 36, 40, 45, 51]
This works like a normal progression, if you lose, then you go to the next bet.
Progression 2:
Every time you win, you parlay the bet for 3 spins.
For example, if you bet the first 5 and it win, then bet 10, it wins, then bet 20 for the last win of a total of 40.
The sum of losses to that first 5 bet is [2, 2, 2, 2, 3, 3, 3, 4, 4] = 25 loss for a profit of 15
Review your payout.
For example, if you bet the first 5 and win three times in a row, your profit are 5+10+20=35.
If you deduct the previous loss of 25, the profit become 10.
You are right. What do you think of this system?