Snowball progression from Sextius 1875

[French_cunning_Fox]

Yes FreeRoulette. This all is correct!

here I add new time the Sumary to playing:

In summary, after each session, one adds one's winnings to the capital Bankroll, which, thus increased and still divided by 20, results each time in larger bets to be placed in the next
session—this is what is called "snowballing."
If, in a session, one loses all twenty bets, without managing to win back the four coins, then one has fallen below the initial capital of one hundred francs, minus the reserves;—then one starts over with a second capital of one hundred francs,
with which one proceeds in the same manner, and so on.
You play at least two sessions per day, one in the morning and one in the evening—so by winning
four progressive stakes per session for ten days, the initial capital of one hundred francs will
have reached the amount of:

Translated with DeepL.com (free version)

[French_cunning_Fox]

Here is interesting, the 20 value.
So to loose the original 100 divided capital, so as to play one session try to win +4 Bet.
We have to play 19 other Session to try to win. And this all in Flat Bet without other betting value.

So if Session "A" from Morning is lost, retry new on Evening the next.
And is full impossible, to lost 10 day per 2 session on day, to lost this capital.

Because, it's don't say, player should use to engage the rest of Capital by lost one session. By lost one session, here player should stop, and come back on night, to make new try.