Amenable had previously been slow to begin, but in two Cranbourne jump-outs last month the four-year-old has improved his barrier manners.
"He's definitely more switched on, but he's always been a talented horse," Kent Jnr said.
"He seems to be leaving the barriers a lot sharper now and he's carrying less excess, and Damian Lane made the comment in his last trial that he seems to have come to hand a bit quicker now that he's not an entire and carrying the bulk a normal colt would.
"He's always shown the potential that he could win a nice, big handicap one day.
"He got very close in the Toorak and ran very well in the Memsie last spring, so hopefully we can kick off the prep in winning fashion."
Amenable is entered for the Group 1 Doncaster Mile (1600m) at Randwick on the opening day of The Champions, and Kent Jnr said that was a race they would like to target.
"I think if he runs really well, we will look to go to Sydney with him," Kent Jnr said.
"He is entered in the Doncaster, and if he pleases us first-up and second-up, and gets into the race, that's where we would like to go."