The usually ebullient Gai Waterhouse is taking a measured approach to the autumn with rising star Ecuador.

That's not to say she doesn't have big plans for the gelding.

Ecuador will resume in Saturday's February Handicap (1400m) at Rosehill following a spring campaign in which he progressed from midweek company to finish a length behind Boban in the Group One Epsom Handicap.

A dominant $2.50 favourite to make a winning return, Ecuador also shares top billing for the Doncaster Mile at $8.

However, Waterhouse isn't committed to an autumn path.

"I haven't set his plan. I will let him get to a race or two, get some prizemoney for the owners and then program him," she said.

"In the spring, he could be anything. He could be a Cox Plate horse. He's got a lot of talent."

Stablemate and Queensland Oaks placegetter Vaquera will also resume in the race.

She scored a first-up win in the Tibbie Stakes as a $21 chance last preparation and is a similar price in early markets for Saturday.

Third to Ecuador in a recent barrier trial when she closed nicely, the mare is given a knockout chance by her trainer.

"She is most capable of sprinting well fresh," Waterhouse said.

"Hopefully a horse like Vaquera can make the grade and go on to a race like the Parramatta Cup."

Waterhouse also expects last-start Randwick winner Woodbine, a son of 2006 Golden Slipper winner Miss Finland, to stake his carnival claims in the opening race on Saturday's program.

"He's certainly a horse on the way up, a horse who is improving. He can win again,' Waterhouse said.

"I'm stepping him up that bit in class but races like the Eskimo Prince and those Group and Listed races, to get there it means he's got to get a bit of prize money and a bit of experience."

Waterhouse also confirmed Perth apprentice Chris Parnham was on loan to her "for a couple of months" and would ride for her on the NSW provincial circuit.