Phil Keen and Jon Minshaw dominated proceedings to take the overall pole position for tomorrows race by a margin of 2.722 seconds.
Minshaw was instantly on the pace in the Am session, the first qualifying session of the day, as he took the No. 33 Barwell Motorsport Lamborghini Huracan GT3 to the top of the times after the first flying laps were registered.
James Littlejohn was the closest rival, even toppling the mighty Minshaw for a couple of laps, but his fight would be no avail as the No. 24 MacMillan AMR Aston Martin Vantage GT3 would finish 0.718 seconds back, after the Lamborghini improved on the final lap.
Keen appeared to be at a disadvantage as he took control of the No. 33 and set off on his first flying lap; the No. 88 Mercedes-AMG GT3 of Adam Christodoulou and the No. 24 of Jack Mitchell were not very far ahead. The Lamborghini was not hanging around however, and had dispatched the two machines by the start of the next lap.
Times only fell as the Pro drivers continued to push on, with the No. 33 never once conceding the top spot for the entirety of the session.
Once the session had finished, Keen and Minshaw sat very comfortably at the top of the pile. Jack Mitchell and James Littlejohn brought the No. 24 MacMillan Aston Martin home with the second fastest time, whilst the second row of the grid will be occupied by the No. 11 TF Sport Aston Martin and the No. 6 Barwell Motorsport Lamborghini Huracan.
Matt Nicoll-Jones and Will Moore, driving the No. 62 Academy Motorsport Aston Martin Vantage GT4, took pole in the GT4 class, beating the No. 100 Black Bull Garage 59 McLaren 570s GT4 of Ciaran Haggerty and Sandy Mitchell by 0.132 seconds, after taking a risk by running slick tyres on a drying track during the second of the GT4 qualifying sessions.
It will be an all Ginetta second row, with the pace setters during the first session, the Niall Murray and Jacob Mathiassen piloted No. 43 Century Motorsport G55 GT4, starting alongside the No. 51 Lanan Racing machine of Alex Reed and David Pittard.
The main event gets underway at 14:10 local time tomorrow.