Tony Gollan isn't sure if Topping has the class to upset Belltone but is adamant Saturday's Listed Tattersall's Mile is the right time to have a go.
Gollan will start his recent stable acquisition in the 1600m feature at Eagle Farm with the Kelso Wood-trained Belltone a clear favourite at $2.40 ahead of another in-form stakeswinner in Adnocon ($4.20).
Topping ($15) has only had two starts for Gollan but showed enough to convince the trainer to give him his shot in the Tattersall's Mile.
"This is the first preparation I have had him and his first two runs for me have been really good," Gollan said.
"We've had a bit of rain and there's showers forecast so the track is going to be rain-affected which is certainly no concern for us.
"We're probably throwing him in the deep end a bit in a stakes race but those top weights (Belltone and Adnocon) have earned their weight and he's going to get in nicely on the minimum.
"He's third up and in good form so I expect him to run well, it's just a matter of whether he's got the class to beat them."
Belltone will carry 59kg having taken out the Listed Eye Liner Stakes (1350m) and Listed Glasshouse Handicap (1400m) in his past two starts.
Adnocon (58.5kg) won the Listed Ascot Handicap (1200m) last start having won the Eye Liner in 2010 and 2011.
Topping started off for his new trainer with a second over 1400m at the Gold Coast before being runner-up again in a 1600m race on the Caloundra Cup program.
"I'd definitely rather be meeting those horses now than a month ago," Gollan said of the favourites.
"Now they are carrying top weights and Belltone could possibly be at the end of his preparation while my horse is only third up.
"If he's going to be competitive against those horses it's going to be now.
"It's just a good test for him."
Topping, who was previously trained by Michael Nolan and then Trevor Bailey, has won seven of his 34 starts.
He was second in last year's Listed Toowoomba Cup (2100m).