Don't bet the max (half your
bank) every round. This does not apply when you
have under $100 ... but once you do, you don't
want to start all over again if you lose one round
of #21.
The best security, when playing,
I've found to base your bets on the fact that you
WILL lose eventually.
Here is an example (you'll
start with a lot less money, but the principal
will work scaled down as well):
Lets say you have $30000 in
the bank. How much would you bet? I'd say bet $3000.
Why? Lets say you lose. You are now down to $27000.
Not bad. How much do you bet now? Answer: $4000.
Why? If you win, you double it to $8000, which
leaves you with $31000. Not bad ... you still
gain even when losing. Lets say instead of winning
with the $4000 bet, you lost a few more times...
lets do the math (assuming you have $30000, and was
in a loosing streak):
Money bet ----- BANK ------------- Money gained if you win:
$3000 --------- $27000 ------------ $33000
$4000 --------- $23000 ------------ $31000
$6000 --------- $18000 ------------ $30000
$9000 --------- $9000 ------------- $36000
So you could play four games,
loosing the first three, and still end up with
a lot more money than you started out with. Course
you'll have to do your own math adjustments when
playing.
The end point is, while betting
half your bank each time may be the FASTEST way
to a high score, it is also the fastest way to
LOSE. Making some account for the odds that you
will lose once or twice will bring security to
a game that is based on numbers :)