The Sixers were put through their paces with a centre-wicket practice session at Scots College on Monday afternoon and Smith believes it was the ideal preparation for Saturday's big match.
"We love those nice long days at training and the longer we can spend in the middle, the better we're going to get," Smith said.
"We learnt at lot out there and it's been really good for all the girls to have a hit out in the middle."
The Sixers' last outing ended with a Super Over loss to the Melbourne Renegades in Geelong and Smith is adamant the girls in Magenta are ready to bounce back.
"The last game we played we lost in a Super Over and we've all learnt from that, so we'll be coming back bigger, better and stronger," Smith said.
"We love playing against the Thunder am I'm sure it'll be a really good game."
With 10 days in between WBBL matches Smith said the Sixers have been able to meticulously prepare for their cross-town rivals ahead of Saturday's fixture.
"We have a lot of footage and wagon wheels from their last few games and we've looked at each player closely in order to put some plans in place," Smith said.
"We love playing at the SCG in front of our home crowd and it's going to be an absolute ripper, so I can't wait."
The WBBL Sydney Smash is set to start at 2:30pm on Saturday afternoon, with the BBL fixture between the Sixers and Thunder scheduled for 7:25pm.