Henry Candy will make "a late decision" on Limato's participation in the Qipco Champions Sprint after his position at the head of the betting eased slightly ahead of Champions Day at Ascot on Saturday.
The dual Group One winner, so impressive on his favoured fast ground in the Prix de la Foret at Chantilly, drifted to 11-4 from 2-1 in Coral's ante-post book, with support coming for Quiet Reflection and Shalaa.
Immediately after his French win, connections faced the choice of whether to run in the Breeders' Cup Mile or Sprint, b ut such has been his well-being at home he emerged as a contender for Ascot due to the likelihood of fast ground.
More showers have now appeared in the long-range forecast but, as of yet, Limato's participation is not in doubt .
Candy, who could also saddle last year's runner-up Twilight Son, said: "I've seen the forecast has changed slightly and there are a few more showers around.
"It will be a late decision, though. He'll be declared and we'll be walking the track."
Coral's David Stevens said: "With an unsettled forecast for the days ahead, Limato is not certain to get his favoured quick ground at Ascot.
"That may be why punters have come for Quiet Reflection and Shalaa, and while still favourite, support for Limato has all but dried up."
Dean Ivory believes Ascot's stiff course will play to Librisa Breeze's strengths when the grey drops down to six furlongs.
The four-year-old has been successfully campaigned over further and showed an electrifying burst of speed to win a valuable handicap over seven furlongs at the Berkshire track just two weeks ago.
Ivory took Librisa Breeze out of the Balmoral Handicap over that trip at the five-day confirmation stage as he felt his horse deserved a chance at Group One level.
"Obviously we're dropping back to six furlongs. It's the end of the year and there aren't many races around," the Radlett handler told At The Races.
"Sometimes you've got to take a bit of a chance.
"It's a very hard race. It's one of the toughest races I've seen for a while, but it's a Group One and we think he's good enough to take his part in it.
"He could just come and surprise us again. He'll be finishing strong. Ideally I'd like seven furlongs, but the horse is hopefully as well as I can have him.
"He only ran a couple of weeks ago. We don't know how much it's taken out of him until we run him.
"He likes Ascot. It's a stiff track and we're looking forward to the day, very much so."