This system, located at http://forums.ozmium.com.au/showthread.php?t=1058, was originally posted by Reenster back on 28/6/2002. The rules of the system are as follows:

Rule 1:Operate on Saturday Class (over $40,000) races only.
Rule 2: Eliminate 2YO and 3YO races.
Rule 3: Do not operate on set-weight or weight-for-age races.
Rule 4: Take the minimum weight (ignoring apprentice claims) and add 3.5kg. This is called the midweight.
Rule 5: Add 1.5kg to and subtract 1.5kg from the midweight. This 3kg range is called the weight range. Selections must fall within the weight range.
Rule 6: Look at the last three starts of each runner in the weight range.
Qualifiers are runners whose last three starts add up to 11 or less (spells count as 10).
Rule 7: Look at the last two starts of each qualifier. Runners whose last two starts add up to 4 or less are the selections.
Rule 8: If more than one selection in a race, back both if at least 2/1 can be obtained. Otherwise back the runner at the longer odds.

Reenster comments: "The idea seems to be to catch in-form runners that the handicapper has missed or under handicapped.

"Other filters such as wet track ability (especially in Melbourne) could be used to modify selections."