This is another way to protect the bankroll. It goes like this:

For every 10 units drawdown, reset point gets decremented -1.

Example:

Using a 100-unit bank, if it happens that some bets are lost and bank gets to 90, then the reset/exit point is decremented in -1 from 100 to 99.

Shall I have a hit and get the bank to 99, then it is time to reset the "attack". This helps in preventing that for not cutting the cycle in 1 unit, it goes lost.
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So, considering the 100-unit bank, it goes like this:

Bank's lowest  / Drawdown / Units decremented by 10:1 rule / New reset point
90 / 10 / -1 / 99
80 / 20 / -2 / 98
70 / 30 / -3 / 97
60 / 40 / -4 / 96
50 / 50 / -5 / 95
40 / 60 / -6 / 94
30 / 70 / -7 / 93
20 / 80 / -8 / 92
10 / 90 / -9 / 91

Regards,
Victor