General George Armstrong Singer, Lieut. A. Mendelson and the Indians.

[slingshot]

Here' a Singer mini system:

5 cent
10 cent
25 cent
50 cent
$1
$5

Bankroll for the play would be $20 + $40 + $100 + $200 + $400 + $2000 = $2760

Win goal would be $120 which is directly proportional to Singer's win goal.

According to Singer he rarely if ever needed the last bet level, $100. So you shouldn't need the last bet level, $5, on this progression. That means you could put this play down with just $760.

Correct- and I've stopped at dimes with $85 win. Why? This is the single play strategy and I'd been there over an hour and had to leave. This would be a great strategy for keybangers as it is very time consuming. My favorite is artt strategy for both free play and regular play. Of course, on free play, the bonus poker part of the strategy is key.
Oh, one last thought. There IS a $2 session after the $1 session. Some machines have 10 credits at $1-or 20 credits at 50¢.