“Clinton was keen for me to get back into it and have a go,” John said.
“He wanted to give me horses to give me another go and I took the challenge on.
“Clinton owns all the horses, we have got nine at the moment and there is a few more coming. He has a few more in New Zealand he owns that are coming over here, as well.
“He will bring a few more to me once I have more room.”
John stepped away from training following the death of his wife and also noted he just needed a break from the sport, as well.
Between 2000 and 2007, John prepared at least 38 winners every term, including a high mark of 59 victories one campaign.
Jaccka Cooper delivered him his first winner back after he returned to the training ranks earlier this year.
The seven-year-old scored over 1780 metres with son Brent in the sulky.
Starting from the outside gate on the front line, Brent fired Jaccka Cooper up in the early stages to sit midfield for much of the trip.
The 37-year-old Brent got going well before the home turn at Redcliffe and it proved to be a winning move as they claimed victory by a touch over a metre.
“Brent drove the horse well and gave it every possible hope,” John said.