Aussie Sevens star Simon Kennewell admits transitioning back to the 15-man game has been tough.
But he is adamant he has done the necessary work and that his Sevens teammates, Henry Hutchison and Liam McNamara, have done the same.
"The transition, it was tough early but we've got a good bunch of boys here that have helped me learn the patterns and the structures," he said.
"That's been very helpful.
"I've watched a lot of training footage to get my head around what we are doing here but sometimes I've had to slow down to think things over again to adjust to the 15s format."
Simon Cron's team will need that trio to be at their very best if they are to beat Wales tonight.
The team's glaring weakness at the Oceania Championships was the back line and that's where Cron has rolled out a completely re-modelled unit.
The forwards, led by the all-Queensland backrow of Angus Scott-Young, Liam Wright and Reece Hewat, set a terrific platform in the team's three matches at Bond University but the backs were not able to capitalise.
Poor handling and disorganisation was the theme of their average win against Fiji and it was exposed in the loss to New Zealand.
Bringing the Sevens trio in as a formidable back three, along with Harrison Goddard and Hamish Stewart in the halves and Sione Tuipulotu and Izaia Perese in the centres can only aid the team's chances against a strong Wales outfit.
"We're definitely not taking Wales lightly," Kennewell said.
"They're a team that has the potential to take out this tournament."
The Australian U20s take on Wales U20s tonight in Georgia, kicking off at 2:30am AEST, broadcast LIVE on FOX SPORTS.
