Maher has timed Set Square's preparation so she goes to the Caulfield Cup at her fourth start of the campaign and he can't fault the mare, who was a last-start Turnbull Stakes placegetter.
"It was a quality field last start and she was really strong," Maher said.
"Out to a mile and a half you'd think she would only be better. She gets in well with 51 kilos. There's a lot to like about her."
Lees wanted to see Lucia Valentina work well yesterday morning and the mare did just that.
"I was very happy with her work. Outside of her Epsom run, she's given every indication she's going as good as last year," Lees said.
"It's a bit unorthodox going from a mile [1600m] to 2400 but she's the type of horse that can do it. It's been done plenty of times before."
Lees will also have Protectionist in the Caulfield Cup and last year's Melbourne Cup winner worked solo on the course proper early yesterday.AAP