The Stradbroke Handicap winner has done brilliantly since his first race in Victoria, the Toorak Handicap at Caulfield on October10, where the swooper was sixth to Allez Wonder.

''He's a completely different horse to what he was last week before the Toorak,'' Karakatsanis said.

''I thought I had him just about right but comparing him to this week, it's totally different, he's pulled up great and thriving and I honestly couldn't believe the difference a run and a week has done to him.

''He's improved two or three lengths even in his work, so I can't wait to get him to the races.''

Karakatsanis said the track at Caulfield did not play in Black Piranha's favour and he thought the run had plenty of merit.

''The place you didn't want to be was where he was, which was second and third last on the fence, it was always going to be hard for him on a track that was better for the on-pace runners,'' Karakatsanis said.