In adapting to the professional level, Mangiapane experienced the usual growing pains.
"Everyone's bigger, stronger, faster,'' he recites. "The stuff you hear all the time, sounds a bit cliche I know … still, it's true. But I've been playing against bigger, stronger guys my whole life, right?
"What really takes getting to is the speed, and the players at that level being smarter, knowing where to puts pucks, things like that.
His buddy Andersson got the call and played his first NHL game last season.
Mangiapane hopes his turn is up next.
"You always want to get a shot. That's what everybody's looking for, to play in the NHL. It's on my radar, for sure. And of course you'd like it to be sooner than later.
"But the game's all about opportunity. When one comes your way, you've got to take it all in and make the most of it. I don't think you can get impatient, start worrying or wondering 'Why not me?'
"If you believe in yourself, you know a shot's coming. When it does, be ready."
Until then, whether that opportunity arises in September, after Christmas or whenever, he'll continue to hone his domestic and professional skills in Stockton.
"My go-to is chicken parm. My mom's Scottish and my dad's Italian, so I'd go over to my nonna's place and get a nice plate of pasta. So that's on the menu now, too."
And if, by chance, Mangiapane receives a Calgary summons while Andersson's still in Stockton?
"Honestly,'' he teases, "I don't know.
"Hey, he'd be fine. He's not a bad cook himself. And I'll give him a few of my recipes. He should be okay.
"Actually, I kid him but we get along great.
"We're good friends."
Back in Barrie.
Now in Stockton.
And in future, with a bit of luck, here in Calgary, too.