Two years ago, Dallaglio missed the latest of England's final hurdle failures at Lansdowne Road because of the knee injury which threatened his career.
But the 31-year-old back-row forward is ready to make amends by consigning that defeat - and the previous recent final showdown setbacks against Wales and Scotland - to history.
The Wasps skipper said: "Each occasion the reasons for defeat have been different. Against Wales we gave away a lot of penalties in the match and allowed Neil Jenkins his opportunity.
"More than anything, selection against Ireland was not what it could have been.
"We suffered those defeats and there's nothing that can be done about that apart from learning from those three games - and I believe this team has learnt those lessons well."
This time, he insists, England are better placed than ever despite the continuing disruption caused by injuries.
"There always seemed to be a piece missing from the jigsaw for England but, with the exception of Phil Vickery and maybe one other, we really are at full tilt and we are not going to get a better opportunity," he said.
"We are going to have to play the best we have in the championship to win the match but it will be nice to prove beyond doubt that we are capable of winning away from home."