Michael I'm getting confused as to what are your "latest" selection criteria. I have it as:
Omit if horse in top 4 Unitab ratings
Omit if C, D or T in form
Min field 9 horses
Must be $100 or more in Don Scotts rankings
Finished 7th or worse last start
A horse is eligible if having 2nd start if it complies with all other criteria
Omit if horse resuming from spell or second start from spell
Omit if >= 3.0 points in Form column of Don Scotts ratings.

Werribee 5/15 was rated 100 today, the one that WON.
Werribee 6/10 with 96 points could be judged as being in the top 4 Unitab.
Thanks RP