"That was an awesome experience," Darling said. "Finishing my season on a high note and having fun playing hockey really got me into a good mental space for the summer."
He spent three weeks after the tournament vacationing in Europe and Egypt with his girlfriend, Jaclyn, before returning to Raleigh, North Carolina, to reinvent himself.
Hurricanes defenseman Jaccob Slavin, who also spent the summer in Raleigh, said he could sense a different mentality with Darling immediately.
"Even just in practices he was making saves that he wasn't making last year," Slavin said.
Darling credits Jaclyn for changing his eating habits.
"She taught me how to eat healthy and have it taste good," he said. "I didn't know that existed."
He never went grocery shopping last season, always favoring the quick meal out. This summer, he and Jaclyn, who moved to Raleigh full-time after living in Chicago last season, ate almost every meal at home, except for the odd date nights, Darling said.
They made discoveries.
"If you want ranch dressing, you can make healthy ranch dressing," Darling said. "If you want mayonnaise, you can substitute it for vegannaise. Switching from Coke to Coke Zero is a huge thing. Instead of eating regular ice cream, now I eat Halo ice cream.
"I couldn't believe it because I still got to eat ice cream and drink soda and I lost 30 pounds."
He discovered Pilates. He took up boxing.
"Those were some of the hardest workouts I've ever done," he said.
The difference is noticeable, not just in his slender physique but in his goaltending.
"He's a lot cleaner, a lot smoother in all his movements," Carolina goaltending coach Mike Bales said. "Especially for a big guy, 6-foot-6, he's very athletic and that's a big part of his game, battling for pucks. He's able to react off his feet, gap-up a little better and use his big frame to cover more net than he was able to last year."
The next step for Darling is proving it in the regular season, when he can change the minds of all those who lost faith in him after thinking he had so much promise a season ago.
"I will be the guy this year that I was signed to be for this team," Darling said.