I'm just gonna back my top selection for a while
The Wager Size is pretty much the Odds available divided by the assessed Odds - I think!! - something like that anyway

CRANBOURNE Race 7

6 MAXZIVA $3.9

CRANBOURNE Race 8

2 FAT BOY JOHNNY $4.8
4 EARS TYSON $5.8
7 LINGUIST $6.3

This race is very Open so I don't think I should limit myself to the top selection only.
I will back one of these and base my decision on how much Overlay is available.
Early Odds in The Watchdog suggest the top selection is still the selection

CRANBOURNE Race 9

4 MAJAK MAGIC $4.8
1 SCHWARTZ'S BOY $5.8
2 SPEED PLAY $6.4
6 STRAWBERRY ROSE $7.4

Another Open Race , but the top selection feels okay at the minute

Very interesting, in race 7 I only have Guppa Lee and in race 8 Ears Tyson?
Hmm, to bet or not to bet? See what the prices will be, anything over $2.5 will do I suppose.
Good luck

For your information Lomaca , here is my price on Guppa Gee.
1 GUPPA GEE $18.4
and I have it ranked Last.
It simply isn't capable of running a winning time.
Place Chance is a different story though.

I LIED!!

Its Price is $12.70 and is ranked 6th
The rest of the post is True.

SHEPPARTON Race 4

3 INDEPENDENT LASS $3.8

SHEPPARTON Race 6

7 BEST PERFUME $2.6
4 WOODSIDE PARK $4.2
5 TERRY'S DELIGHT $5.1
3 KEEP ME COVERED $5.7

Always the way isn't it?
Do one thing something else happens.
Bet for win and your top 4 selections run the F4.
Not just that , but the 2nd selection , which was a Massive Overlay wins , and the top selection which was barely an Overlay fails

6 MAXZIVA $4.9
3 RED NORM $5.1
2 TALON MISS $5.9
4 DOLLY'S HAND $7.6
8 JOHN CONNOR $10.3
1 GUPPA GEE $12.7
5 LANBROOK ARCHIE $16
7 LEKTRA LOU $16.6

Had I done this in the previous Race , I would have done very well.
But that's easy in hindsight.
One thing that makes it difficult is that the Odds change Massively in the last few seconds and keeping track of the eventual selection is not easy.