“I've got another race before I go to Tassie so hopefully that'll keep me sharp.”
Mostert moved from 10th to third in the championship across the weekend, having recorded just fifth and 15th in an Adelaide opener that included a pitlane fracas.
“After Adelaide, it felt like we had the potential to get a trophy there but didn't capitalise on it,” he said.
“So it's fantastic that this weekend, a few shorter races [means] less opportunity for me to make mistakes!”
Mostert also revelled in adding his name to the Perkins Trophy, after inaugural winner Jamie Whincup.
Six-time Bathurst winner and former Formula 1 driver Perkins handed over the trophy on the podium, despite his own health issues earlier in the week.
“The last couple of years we've added a couple of cool trophies, with the PIRTEK Enduro Cup [in 2017] and this one here, the Larry Perkins Trophy,” said Mostert.
“It's pretty special to be able to get your name on a trophy that's hopefully going to stay for many years of the sport.
“You always think it's pretty cool when in 20, 30 years time you're watching Supercars and these other new whippersnappers coming through, [saying] 'gee, you're that Chaz Mostert, or Jamie Whincup, a bloke that's got his name on the trophy I've just won'.
“It'd be pretty cool to be part of the heritage of the sport.”