He risked taking one hand off the wheel and trying to fix it, as his 1500hp-engine boat immediately drifted to the left.
"I tried flicking it a couple of times but I just couldn't get it right."
Dillon then struck the side of an island rotation and possibly had flashbacks to his violent crash at Shelterview last season.
But the veteran corrected and completed what would become a final lap time which Hill and Head could not catch.
"I said [at the finish] to the television guy, 'that's us done'. But then the other two went, and we'd won it.
"It was absolutely amazing, we still came faster than we had all day."
The margin back to Hall and Head was only split by 34 thousandths of a second.
As the only driver to make the Top 3 of each round, including two wins, Dillon has now got a solid buffer at the top of the points table, which means the PPG Hulk team will commit to a full six-round campaign - something they were not sold on at the start of the summer.
"If we carry on, we're going to have to do the whole season," said Dillon. "The boat's just running awesome - the harder you drive it, the better it goes.
"It's just scary driving it that hard."
Caughey is in his "Plan B" boat - a Sprintec craft that is borrowed, although the hull is one he built.
Minnell went out in the Top 8 eliminator, while Wanganui's Rob Coley was strong to make the Top 5.
In the Biolytix 400s series, Wanganui's Hayden Wilson rebounded in the best way possible from his crash and head injury at Mount Maunganui to win Meremere for the second year in a row and put himself back in title contention.
But it came at the cost of series leader Ross Travers, whose comments on Saturday that he needed to listen to navigator son Shane or court calamity proved a self-fulfilling prophesy.
Travers Jnr was pointing to the right during their Top 12 run but his father took the boat in the other direction.
"Shane threw his hands in the air despairingly and by the time they had sorted out their detour their day was over," said Neil Jones in the event report.
"As commentator Craig Wiggins said, 'it's a Travers-ty'!"
With unquestionably the quickest boat gone, Wilson and navigator Chris Hausman stepped up and won the Top 3 eliminator, with Hamilton's Ollie Silverton finishing second by 0.9s, thereby taking over the points lead in the series. Te Awamutu's Patrick and Jay Haden overcame problems with their grille to finish third on the day.
As Wanganui's Paul Tulloch - third overall in the 400's series - did not attend the round, Team Travers dropped back only as far as second spot, while Wanganui women's team of Donna Thomson and Monica Couper moved up to third spot after making the Top 5 at Meremere.
Gerry Linklater, who co-drives White Noize with Wilson, finished fourth on the day after their crews worked through a fuel pressure problem.
Having got himself back to fourth on series points, Wilson was encouraged the pressure can be kept on Travers, despite his advantage in speed.
"It's definitely opening it back up, from him running away with it."
The fourth round will be at the tight Riverside Jet Racing track at Crownthorpe, near Hastings, on March 8.