Aware John O'Shea, the trainer of second favourite Hartnell ($8), was guarded about the six-year-old gelding's potential to end a five race losing streak against Winx, Waller replied: "I take no notice whatsoever."
However, he did pay close attention to his superstar's final trackwork.
"She's going as well as ever, it's hard to quantify how well she's going," he said.
"Obviously we saw her win well first up.
"You can't really go better than breaking a track record in a Cox Plate almost 18 months ago and winning another Cox Plate by such a big margin."
Forecast rain today was not a concern.
"If it's not rain there's probably a bit of irrigation put on the track anyway," he said.
"I think the tracks have improved in Sydney over the last six months, particularly the Randwick track.
"It gives me a bit more confidence that it can handle a bit of rain.
"It should be the perfect racing surface."
- AAP