Leinster scrum coach Robin McBryde says the province have learnt the harsh lessons of their Heineken Champions Cup quarter-final loss to Saracens.
And, given they will supply so many of the players who will take on England at Twickenham on Saturday week, Andy Farrell and John Fogarty will be hoping he's right.
The PRO14 champions were dismantled at the scrum last month, with Saracens forcing penalty after penalty at the set-piece to squeeze the life and momentum out of the home side at the Aviva Stadium.
McBryde, the former Wales scrum coach, takes his fair share of the responsibility for that performance and says he has changed the way Leinster scrummage in tandem with the national team management as a result.
"We all learnt quite a few lessons from that game, myself included, with regard to the messaging in that game," he said.
Tadhg Furlong's absence has been felt for province and country. The tighthead prop has not played since the spring after suffering back and calf problems.
He won't face Edinburgh on Monday, but McBryde says he's close to a return. "He's alright, he's keeping himself trucking in fairness to him," he said.
"He's keeping himself in a positive mindset."