Another one... This is the last one for tonight I promise. Just putting up a few examples so people who want to use my website have a few places to start.

Its called the 12/12 Risky System because you would have to be crazy to try it in real life.

The results first:

There were 24142 horse form lines in the database at this point in time.
There were 377 selections for the System
There were 377 which Lost (did not win race) for the System for a strike rate of 100%
You had to pay out $0.0 but brought in $358.15 after 5% commission. This means a Profit or loss of $358.15 or a percentage profit/loss of 95%

That is a 100% Strike Rate.

The Rules:
TAB Number >= 12
Barrier >= 12
Win Price >= 50

This one might be a contender for using a fixed liability. I'll steer clear of it but others with a higher risk profile might like it.