Wallabies and Waratahs prop Sekope Kepu has said that new scrum coach Mario Ledesma is having a positive effect on th side.
The Argentina legend has had a beneficial impact on the Super Rugby champions since joining from Montpellier last year, where he spent two years after working with Stade Français.
Kepu believes the initial session have been good but there is more to come from the Waratahs pack going forward under Ledesma's tutelage.
"We are building slowly," Kepu told the Canberra Times.
"We are working on it and we are trying to keep the referee out of it and eliminate those 50-50 calls that he has to make. We are definitely a work in progress and Mario has been great for us.
"If you keep it up and you are pushing square – you are not working angles or anything like that, just going back to basics and old school style.
"That is what Mario is all about – scrumming as an eight. If we can do that, it keeps the referee out and definitely shows who's trying to manipulate the scrum and so on.
"The main thing he brings is just basically scrumming as an eight – as a pack – as opposed to trying to do your own thing and wrestle.
"If you can work as an eight, and stay under pressure and not be selfish, you will get results.
"Look at the Pumas scrum and the way they scrummage. It is something we aspire to try and be like. It is something we've been working on over the pre-season.
"We've done a lot of work in pre-season … double days with scrums just to build that mentality and attitude, that scrum fitness, that we have never done in the past.
"It's all about getting the most out of our forward pack and making the back five understand. They have come to learn over the pre-season how important scrums are."