Tom and George Burgess have not only revitalised their NRL careers but have turned around their reputations as error-prone liabilities.

The Burgess twins have rightly earned plenty of plaudits during South Sydney's stellar NRL season, with the likes of Damien Cook running amok on the back of the platform they have laid.

While most sides have struggled to contain the Burgess power game the brothers have made equally big gains in eliminating cheap penalties and dropped balls.

According to Fox Sports Stats, Tom has more than halved his errors this year, making just seven in 20 appearances (down from 18 in 22 games last year).

Similarly, he's conceded just four penalties - down from eight in 2017.

George's handling has also improved, spilling the ball on just seven occasions in his 20 appearances.

In previous years his error count has regularly been in double digits - 15 errors in 2015 and 17 in 2013.

The only negative is George's penalty count which stands at 15 with four rounds remaining - compared with six in 2017 and eight in 2016.

"Not much has clicked really," Tom said.

"There was a lot made about that (error and discipline) in the past. It can get multiplied when it's three players with the same last name, we're all put in the same basket there.

"We'll just continue doing the same thing at training, you're always working on your ball security and things like that.

"And maybe there is less numbers in the tackle on us now that we've got our shapes, there's less pressure on the ball there."

Asked about the secret to their success, Tom said he and his brother George were benefiting from having their game plan simplified by coach Anthony Seibold, in his first year as an NRL head coach.

Tom admitted that his reputation for making errors and discipline lapses had at times got inside his head and affected his performance.

"It can be mental," he said.

"If you go into a game thinking 's*** can't knock-on today'. There are a lot of mental things in the game that you've got to be switched on for."