Dapto R 1 #1,8
Dapto R 2 #2,6

Dapto R 4 #8
Dapto R 5 #1,3, ?4

Dapto R 7 #3
Dapto R 8 #2,4,5
Dapto R 9 #?5,8
Dapto R 10 #3,6

====================
The Meadows R1 #4, ?7

The Meadows R3 #3,8

The Meadows R5 #8
The Meadows R6 #4
The Meadows R7 #4,6
The Meadows R8 #?2,3
The Meadows R9 #?4,8

The Meadows R11 #2,5,?7
The Meadows R12 #8

=======================
Cannington R1 #2

Cannington R3 #2,5
Cannington R4 #4
Cannington R5 #1,2,5,6,8
Cannington R6 #1,7
Cannington R7 #2,3,7
Cannington R8 #1,3,?8
Cannington R9 #2
Cannington R10 #5
Cannington R11 #1,2,4

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Shepparton R1 #4

Shepparton R3 #1
Shepparton R4 #4,6
Shepparton R5 #6
Shepparton R6 #3
Shepparton R7 #2,8
Shepparton R8 #1,3,5,?6

Shepparton R10 #8
Shepparton R11 #2
Shepparton R12 #6

These selections provide varying but reasonable results, depending on the track and day of the week. (why it doesn't work on some tracks and days? I have no idea)
There is however a definite flaw with the method, that is that I don't take into account any other dog that may have a lot better chance in the race.
Perhaps leaving out races where there is an obvious winning chance, would improve the strike rate, but at the moment this is a work in progress and I don't know enough of greys to rate the race reliably.

Good luck