Swallow can take a cut in King George, says Smullen
Smullen wants a bit more cut in the ground for last season's Irish Derby winner Grey Swallow, while Gillet, who rides French hope Bago, would prefer for the ground to be on the fast side.
The pair met in May's Tattersalls Gold Cup, where Grey Swallow prevailed by three-quarters of a length but Gillet hopes that his mount can reverse the form.
"We wouldn't want the ground to be too soft or holding," he said.
"The better the ground the better it is for us. It shouldn't be a worry as long as it's good or good to firm.
"There's no one particular danger as far as the competition is concerned, we'll have to watch out for everybody.
"But I feel fine, just perfect, and I'm very confident."
Bago was last seen finishing third in the Grand Prix de Saint-Cloud while Grey Swallow has not run since his victory at the Curragh.
Smullen said of Dermot Weld's grey: "Firm ground would be a concern. He doesn't need it soft but he wouldn't like it firm.
"I'm hoping for good ground, and if we get that it should be fine. If they don't get rain, I hope they'll water to prevent it being firm,
"It's going to be very tough as it looks like being a very hot race, but he worked well after racing at the Curragh and is in great shape."
Describing conditions at the track, clerk of the course Richard Osgood said: "At the moment we are still good to firm and we are putting a bit of water on it just to maintain it.
"We are concentrating in basically making it safe ground and my ambition is to make it good to firm ground with no jar."
Meanwhile, Phoenix Reach is "fighting fit and raring to go" ahead of his big test.
Andrew Balding's globetrotting star last raced when second in the Singapore Airlines International Cup in May but suffered a bad reaction to treatment for a bout of colic last Friday. His participation was temporarily put in jeopardy but he is now reported back on song.
"All is well and he is fighting fit and raring to go," said Balding .
"It did upset his training regime and we had to jiggle a few things round but he worked on Monday and pleased his regular work rider, so we are all very happy."
Phoenix Reach will be having his first race in Britain at the weekend since he was 10th of 11 behind Doyen in last year's King George.
However, he has since been campaigned overseas with great success and has recorded Group One victories in Hong Kong and Dubai.
And of his chances on Saturday, the Kingsclere trainer added: "As ever it's a very tough race with Azamour, Grey Swallow and Eswarah as well she's a potential star.
"But it would be foolish to underestimate his foreign form and he deserves to be there."
Australian ace Kerrin McEvoy is hoping Doyen can put recent disappointments behind him when he bids to repeat last year's brilliant victory.
Godolphin's son of Sadler's Wells has been unplaced on his three starts since thrashing a high-class field in the midsummer highlight at Ascot 12 months ago.
"If he gets back to his best form I'm sure he'll have a great chance," said McEvoy.
