The master batsman spent more than 32 hours at the crease helping drive Australia's retention of the famous urn in arguably his best ever series.

He revealed on Wednesday that the physically-exhausting effort of compiling 774 runs at an average of 110.57 left him with a serious hangover.

But after a rare two-week break from practice after arriving home, Smith believes ahead of his Sheffield Shield return for NSW against Queensland on Thursday that he's ready for another big summer of runs.

"It was probably a bit of everything: mental, emotional, physical," he said of the gruelling tour.

"Towards the last Test match it got to day two and my mind was saying keep going but my body had shut down and wouldn't let me do anything.

"I was a little bit sick after that.

"I've had a good couple of weeks just to lay low. I just got back into things over the past week.

"I've had three hits now. That will be enough to be ready to go for this first Shield game."

It's a warning both Pakistan and New Zealand's tour squads should heed.

While lethal wherever he bats, Smith has always been at his best at home.

Since establishing himself as a member of the national team in 2013, he's averaged 83.74 on Australian Test wickets.

He also needs just 27 runs in his next six Test innings to become the fastest batsman to 7000 runs, eclipsing Walter Hammond's mark that has stood since the 1940s.

Thursday's Shield match at the Gabba will mark Smith's first first-class game back in Australia since the ball-tampering affair last March.

The last impact of that affair will end after the home series against Pakistan and New Zealand, with Smith's leadership ban set to expire in late March.

It will no doubt pose questions over whether he should regain the captaincy when Tim Paine retires.

There was a thought Smith's batting improved without the added burden of leading the team during the Ashes series, however he could still be seen having a impact on team tactics on the field.

"I'm not even thinking about that (captaincy) at the moment," he said.

"I was pretty chilled out the whole time (in England). I'm obviously pretty intense when I am out there batting but I help out wherever I can.

"I don't want to sit back and not say something if I think it might help us.

"We will cross that bridge later if it comes. At the moment I am comfortable and Tim is doing a great job."

Australian Associated Press