Johnston bred Aspen Lad from Sonador Rose who started 16 times for a solitary maiden win at Callaghan Park in Rockhampton in 2015.
“We raced his mother who only won one race but she’s thrown a couple of other good ones,” he said.
“Apart from Aspen Lad we’ve got two brothers from her, a two-year-old which is running in a few weeks and a three-year-old.”
With Manzelmann saddling up all six opponents, Johnston rates Cochrane as the main threat to Aspen Lad chalking up his eighth win in 24 starts.
Cochrane has won six of his 46 starts and is coming off a last start second to stable mate Golden Athena in a 1200 metre Open Handicap at Mackay on September 5.