If you want a bit of a roughie plan using Unitab ratings:

Sole Unitab 100 rater
Unplaced last start
Not in the top 3 in the Radiotab tips

That's it. Now, it's no goldmine and I'm pretty sure that if someone did a test, it would almost certainly lose money over time, but it is okay for catching the occasional good value winner and placegetter. Good for perhaps including in multis, or maybe you could improve results with certain filters.

Yesterday's results:
MVal 1-3 PLA $1.40
Goul 1-6 -
Goul 4-4 WON $8.70/$2.60
Goul 6-5 -
Pake 2-9 PLA $1.70
Pake 5-11 PLA $1.50
Bord 3-5 WON $12.20/$3.80
Bord 5-4 -
Town 5-7 WON $10.20/$3.00
Tamw 1-6 PLA $2.10
Tamw 2-3 -

Don't expect results like that every day!!!