"So, therefore there's no rush.
"The only thing I ever consider is safety. Like every racehorse, when they go out to the races, there's that element of risk and that's why our horses are checked by the vets every day. Not just Winx. And I think the safety of racing has gone up a whole new level.
"Horses get struck by lightning in paddocks. They get bitten by snakes and they go through fences, so I really think it comes down to the horse and her form and the feedback from what I am getting from my key staff.
"What Hugh (Bowman) is telling me, what the owner wants. I am a coach, I am manager of fitness and making sure the horse is running well."
Waller reiterated that he could not have wished for a more trouble-free run through her campaign and said he will not have presented Winx in better order when she parades before the A$5 million race.
"I think she's better than her first two (Cox Plate wins) because of her size and strength," he said. "The first one, she was a four-year-old but she was tiny. The next one she was obviously a bit stronger and the third one, despite it being a smaller margin, she did break the track record again.
"You have to respect Humidor and Darren Weir peaking horses on the day as you do of every horse in the race." He said the least of his worries will be Winx's rider Bowman getting carried away. "When she goes on the track the crowd will roar but he won't even hear it," Waller said. "He'll be that zoned-in on making sure that all those people are getting what they are there to see."