The daughter of Starspangledbanner has always threatened to win at the elite level with her biggest win coming in the Group 2 Dane Ripper at Eagle Farm in Brisbane last year.
"Jamie knows Morphettville better than anybody, so we're pretty happy to have her in the saddle,'' Warren said.
Warren said he couldn't fault Brooklyn Hustle's Sangster lead-n and feels getting back to the spacious surrounds at Morphettville will be ideal.
"She's in great order,'' Warren said.
"Third-up into this race, we had a bit of time between the Galaxy race and Sale and three weeks into this has been perfect for her
"I think the bigger track at Morphettville will really suit her
Warren said there was always good speed in Group 1 races and was hoping his mare could be the strongest late and finish over the top of rivals.
"There's always genuine speed in these sorts of races,'' Warren said.
"Hopefully, everyone gets their chance and we come out on top,'' he said.