Here's one I have seen around the traps and modified somewhat...

1. Top weight or equal top weight
2. Eliminate FU runners
3. Must have improved over last 5 runs using Don Scott Ratings
i.e. Rating(Latest Run) > Rating (5 runs back)
4. Must have won 1 race in last 5 starts
OR finished within 1.0 length of winner

Cheers LG

__________________
The trick isn't finding profitable angles, it's finding ones you will bet through the ups and downs - UB