Recently I was asked how a person could increase this amount, but still remain from losing their bank to a bad run of cards. The first thing that came to mind was "How much would you be willing to lose before you thought it was too much?" Taking 1/2 of a persons bankroll will normally be enough to make them stop for a bit and go over their strategy, if not end their counting career all together. "How much more do you want to put on the table?" To take half the time to double a bankroll would be to double the amount of bets put out with positive expectation.
For a $10,000 bank, a 1% advantage, this person's bets could go to $200 now. Their bankroll used to have 100 - $100 units in it, but now has 50 - $200 units. Again, not wanting to lose more than $5,000, it's really only 25 - $200 units. After a loss of $5,000 this player can drop back to $50 bets at a 1% advantage and work their way back up again.
I thought more on this, and finally came up with this idea. As the persons bankroll decreased, (expecting the worse) a different percentage could be used. With $10K use the 2% wager. At $9K, 1.8% - $160, $8K, 1.6% - $125, $7K, 1.4% - $100, $6K, 1.2% - $70, and at the $5K mark, 1% - $50.
Now what are we going to do when the bankroll increases? I would stick to the $200 maximum bet, unless you have great cover skills, or are willing to increase your minimum bets to decrease your spread. Making table maximum sized bets will surely get you noticed, so be prepared to fill your shoes with someone who looks like s/he can places these bets for entertainment purposes.
