The cumulative effect of those events was that Trap For Fools entered the Mackinnon Stakes ready to run a huge race in an attempt to land McLean his first group 1 as a trainer in his own right.
"We knew he was the leader in the race and it was a matter of John [Allen] getting his clock right and cranking him up at the right time."
Allen jumped from the barriers, confident and in form with the Victoria Derby in the bag from the previous week and two winners for Weir from earlier in the day.
As Trap For Fools rolled along in front, Allen's confidence rose as he headed to the turn.
"Into the straight he gave a good kick and I thought 'I could be a chance here'," Allen told Fairfax Media.
"I could hear them coming and when they got to me at the furlong he dug deep again and fought them off again so it was a really tough effort by the horse."
His eventual win by a head over Irish Derby winner Latrobe, who finished second, and Victoria Derby winner Extra Brut, who flew home to finish third, brought up a treble for Allen.
McLean was already a believer having led more than 20 group 1 winners in for Weir after he joined him at Warrnambool.