The expanses of Rosehill and a distance rise have tempted trainer Gai Waterhouse to step the well-bred Dormello up to Saturday company.

The colt, by More Than Ready out of 2007 Doomben Cup winner Cinque Cento, will line up in the Woolworths Handicap (1300m) after finishing fifth over 1100 metres at Canterbury last month.

Waterhouse, currently in Turkey attending the Asian Racing Conference, is due home on Monday but her racing manager Bruce Slade says the stable has a nice opinion of the colt.

"He showed a bit early in terms of ability but he's furnished into a scopey horse," Slade said.

"He's out of a Doomben Cup winner and I think he'd thrown to that side of the family.

"But he is in terrific condition, his work has been very good and he will really appreciate the 1300 metres and the roomy Rosehill track."

Waterhouse thought highly enough of Dormello as a spring two-year-old to take him to Melbourne for the Group Three Maribyrnong Plate.

He finished 10th to Real Stolle and was spelled.

"He'd just had enough," Slade said.

Waterhouse's only other runner at Rosehill is Merensky Reef who resumes in the Bridie Sparkes Handicap (1350m).

While better known over middle distances he can sprint well fresh having notched a win and second from three first-up runs and Slade said the six-year-old would be suited by any give in the track.

"He took a while to get going last campaign. He ran fourteenth first-up but that was on a dead track and he really loves the sting out of the ground," Slade said.

"We've purposely brought him back at this time of year when the rain is around."

Slade said Merensky Reef could be aimed at some of the country features, including the Wyong Cup, during the spring.

The stable will also start regally bred filly The Broken Shore in the opening race at Hawkesbury on Saturday.

A half-sister to super sire Redoute's Choice, the filly was competitive in good company during the autumn, placing behind Cavalry Rose and Dear Demi.

"Like a lot of fillies from the family she's not overly big but she's got a lot of speed," Slade said.

"She will be awfully hard to beat."