Trainer Kelly Schweida admits he is baffled by the poor last-start effort of the usually consistent Epic.

Schweida is hoping Epic's return to his favourite track and distance in the Courier Mail Taste Open Hcp (1600m) at Doomben on Saturday will result in a turnaround.

At Eagle Farm two weeks ago Epic ran poorly to finish second last behind Ferment, beaten nearly seven lengths.

"I have to admit I don't know what happened. It was the worst run he has ever put in for me," Schweida said.

"We had the vets and chiropractor go over him and had his blood checked. There appears to be nothing wrong."

"Maybe it was the weight or just one of those runs. We will find out on Saturday."

Schweida has called on in-form apprentice Luke Tarrant to reduce Epic's weight to 55kg.

"It means Epic meets Ferment five kilos better and he also meets a few others better as well," he said.

Epic has had five attempts at the Doomben 1600m for three wins and two minor placings.

Schweida is concerned about the 59kg three-year-old Shadowside will have to carry in the Courier Mail Three Year Old (1350m).

"He is actually up two kilograms for running seventh first-up and it is four more than he carried at win at his start before that," he said."

Meanwhile, Newcastle trainer Kris Lees will monitor the weather ahead of Fine Bubble's scheduled start in the Corona Beach Party Hcp (1200m).

Fine Bubbles won her only start in Brisbane in a fillies and mares handicap at Eagle Farm three weeks ago but Lees said she would not want it as wet as it has been for the past two weeks.