Slater has been the class of the field so far this year and has taken his 2023 tally to 14 wins from 18 races after three further triumphs at Snetterton.
While he may have only enjoyed very narrow margins of victory this time, there is nothing small about his lead at the top of Autosport's winners' table as he is now four clear of second-placed James Clarke.
But Slater was not the only Ginetta driver to boost their position after Snetterton success - in fact all of the drivers to improve inside the top 10 this week were at the wheel of the Yorkshire sportscars.
Luke Reade failed to win any of the seven Ginetta GT contests at the Silverstone G Fest event earlier this month but he returned to form in Norfolk and also scored a hat-trick.
The treble has taken him to nine wins for the year and moves him up from 13th to fifth on the leaderboard.
Completing the trio of Ginetta improvers is Nick White, who took two GT Academy wins - but was tagged by rival Ravi Ramyead in the other race - to climb 20 spots into eighth.
Another driver inside the top 10 did actually add to their victory total last weekend, but Lucas Romanek's sole National Formula Ford 1600 triumph at Donington Park was not enough to stop him from slipping down a place to seventh.
Source: Autosport