Owner John Camilleri is prepared to pay the $150,000 Golden Slipper late entry fee for Fireworks but trainer Gerald Ryan says it won't be necessary.

The $3.5 million Slipper on March 21 was not in the thoughts of either when the diminutive filly arrived at Ryan's stable in September.

Her tough win in Saturday's Widden Stakes prompted Slipper talk but a day later Ryan said there were other options to consider.

"We've got until the Tuesday before the Slipper to pay up but it's unlikely," Ryan said.

"My plan would be to back off her for a couple of weeks and look at a race like the Percy Sykes at The Championships.

"It's a $500,000 race for two-year-old fillies.

"After that she could have a few weeks off. I'd like to get her ready for the fillies series in the spring and get her to the Flight Stakes."

Ryan said Fireworks had always shown ability but several of her stablemates had shown more.

A couple of eye-catching runs at her first two starts paved the way for her Widden success.

A 100 metres out, her hopes looked forlorn but the filly kept grinding away to the line to beat Lake Geneva by a long head.

"I've always liked her but she was getting beaten by others in trackwork so I never thought of her as a Slipper type," Ryan said.

The Gai Waterhouse-trained Vancouver, the winner of Saturday's other two-year-old race, the Canonbury Stakes, is the new Golden Slipper favourite.

He leapfrogged Godolphin's Ottoman and Furnaces with the TAB posting him at $6 ahead of the other pair at $8.

Waterhouse has likened Vancouver to Pierro who she trained to win the 2012 juvenile triple crown.