EMPIRE'S BEST (6) scored at his most recent appearance, getting home by 6 lengths over 6½f at Sam Houston Park (Dirt) as favourite. That continued the good form this campaign, with four wins and three minor placings from nine runs. Top chance again. R DOC (3) returns from a break of four-and-a-half months. Consistent performer last prep whose most recent appearance resulted in a fifth over 1m at Remington Park. Finds the right race to launch another bright campaign. AMBIGUOUS (5) scored an impressive win by 5 lengths when resuming from a lay-off last time out over 1m at this track (Dirt). Will be better for that latest run and is among the winning hopes again. SEND THE BOSS (1) returned from a lay-off last start with a strong win by 0.3 lengths over 6f at this track (Dirt). Open to plenty of improvement and is worth including.