Michael Rodd says all the signs are positive for star mare Atlantic Jewel's spring prospects after she ramped up her comeback with an easy jumpout at a rain-sodden Flemington.

"She looks the best I've ever seen her," said Rodd, who has ridden Atlantic Jewel to five of her seven wins.

"Her coat is great. She's thickened up a little bit so it's very exciting."

Atlantic Jewel wasn't placed under any pressure and idled down over the concluding stages of her 800m hitout on a wet track.

She finished fifth in the heat which included her Group One-winning relation Commanding Jewel.

"We didn't want to do too much because she's had 18 months off and then we get tracks like this. But she felt fantastic," Rodd said.

"She's a lot sharper. She got out of the barriers and travelled a lot closer than I thought she would and I just let her idle to the line."

The five-year-old missed last season through injury and hasn't raced since she claimed the Group One All Aged Stakes in April last year.

Trainer Mark Kavanagh plans to give Atlantic Jewel a more serious test in another jump-out next week, ruling out a first-up shot at the Cockram Stakes on Saturday week.

The Group One Memsie Stakes on August 31, or the Let's Elope Stakes a week later, are among the options for her comeback to racing.

"Next Friday she'll be having a jumpout down the straight and we'll let her go then," Kavanagh said.

Rodd regards Atlantic Jewel as the best horse he has ridden but injury has curtailed her career to just seven starts and almost forced her premature retirement.

"Hopefully she pulls up OK after today. You just take it one gallop at a time with her because anything can happen," he said.

"Everyone knows how good she is and I just want to get her back on the track and get her winning again."

Stablemate and Australian Cup winner Super Cool also had a soft hitout in the wet conditions, finishing at the tail of the field in his heat.

He is scheduled to have another jump-out next week.

"He didn't really like it out there. He's a bludger and needs his blinkers on. He just rolled around, but that's him," Rodd said.

Damien Oliver was pleased with Commanding Jewel, who was fourth in Atlantic Jewel's trial.