Since finishing runners-up at their home major, the Australian Open, in January, Barty and Dellacqua have played just a handful of tournaments together, but there have been no signs of rustiness at the All-England Club.
Against No.7 seeds Groenefeld and Peschke, the Australian duo displayed their artful touch, from both baseline and net, to run out 76(6) 62 winners. Following on from their title run in Birmingham, Barty and Dellacqua have now won nine straight matches on the grass, dropping just two sets in the process.
So what is the secret to their success at Wimbledon? "I just think we have so much trust and belief in each other. Whatever the situation is, we find a way," Dellacqua said. "Especially at the Grand Slams that's what it comes to, it comes down to the best team that can get through - you've seen it with the Bryans, and the other best teams in the world, they work together.
"I think that's what we do well and we don't complicate things - we just go out there and do our job and play to our strengths."
This uncomplicated approach helped them overcome the disappointment of throwing away a 4-1 lead to eventually take the opening set on a tense tie-break when Barty rifled a backhand straight past Groenefeld's head for a winner.
"Even the games that we lost, even my serve to get broken at 4-all, they played a great game. And sometimes you've just got to accept that they'll hit a few good returns or whatever it may be," Barty added. "We were just ready and prepared to work hard in the next game. Eventually that hard work will pay off."
Groenefeld and Peschke fell away after dropping the opener, while their opponents grew in confidence - Barty's probing groundstrokes complemented well by Dellacqua's more cerebral attack. Two breaks helped them into a 5-2 lead before Dellacqua calmly served them into the final.
"To be in another Grand Slam final is awesome and we'll learn from the Australian Open one and take it into tomorrow and have a shot at another Grand Slam title," Dellacqua said.
Having snatched a rollercoaster first set with a break in the final game, they repeated the trick in the second, striking late to open up a 5-3 lead deep before eventually clinching victory when Scheepers fired a forehand long on match point.