Morris said: "He's travelled over well and he's in good form. I've no complaints on that score.
"I'd say the ground is going to ride very tacky. With the covers down the wind hasn't had the chance to dry it out, but you can't have it both ways.
"I think our horse will go on any ground, so that wouldn't worry me anyway."
Rule The World's half-brother Venalmar was beaten just a neck in this race in 2008, while Morris saddled First Lieutenant to win the Neptune two years ago.
"I'd say this horse is a bit better than those two. I think he has everything," said the trainer.
"I might be saying something different on Wednesday afternoon, but we'll see.
"We are pushing the boat out a bit just because he is still quite an immature horse, but I think he has the potential to be very good in time."
The main hope for the home team is the Nigel Twiston-Davies-trained The New One, who won over the course and distance in October and was only narrowly denied at the track in late January.