One of the strongest rules that holds true , no matter what is...
Rule-Must be in the first 3 of pre-post market.
The stats show that there is bearly 1% difference overall between Country Provincial, Metro.

What one will find with certain rules, is that they may work on a Provincial track e.g. won LS in 7 days, 1200m races only.
Works OK on Provincial only.
It falls in a hole if applied to Country or Metro.

Another rule applied to Country races only.
Rule- Must have had a run in last 5 days exactly.
Doesnt work on Provincial or Metro.

Another rule to be applied to races with exactly 10 runners, Provincial only.
Must not have been placed at any of its last 3 runs.
Hits a number of good payers provincial only.
Multiple runners up to 4 in same race.
Falls in a hole if used on Metro or Country.

And so it will go , on & on & on until one goes crazy .

Cheers.

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Cheers.