"There's a lot of upside. I've cruised along with him knowing he's got a big four weeks ahead.
"We've just ticked a box getting through soft conditions today and he can put himself in a winning position, so that's a second box ticked.
"Now we've just got to get him up there healthy and fit."
Ryan said he would be guided by how Highvol performed in Brisbane as to what the gelding's spring campaign may look like.
While not ruling out the Group 1 Caulfield Guineas (1600m) in October, Ryan conceded it was a difficult task after a Brisbane campaign.
"It's a quick turnaround from the J J Atkins to the Caulfield Guineas," Ryan said.
"Not many horses have a good record at coming back for it, look at Broadsiding last year, but horses thrive up there with the sun on their back
"It's all performance based and how he pulls up. If not, we may look at a late spring and then on to the autumn."