Hi Duritz
One idea is to look up what the theoretical run of outs is, then multiply that figure by say approx 3-4 this gives you the run of outs for the bank to withstand.

10% SR theoretical run of outs is 65
20% SR ................................ 31
25% .................................... 24

e.g.
10% Selections
65 x 3 = 195 units needed

20% selections
31 x 3 = 93 units needed.


Another recommended plan is to bet 1/200th of your bank for each day.
Re-adjust staking for the day based on remainder of bank.
e.g. Bank was 1000 betting 1/200th = 5 units a bet.
New day. Remaining bank 900 / 200 = $4.50 unit bets for the day.

We adjust bank up or down based on what the bank is
Sometimes referred to as , bet percentage of bank, up & down.

Cheers.

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Cheers.