A lingering groin issue kept Calgary's sixth-round (166th overall) 2015 draft pick out of this summer's development camp, so he's itchin' to hit the ice at full throttle when the Young Stars Tournament, circa 2016, opens Friday in Penticton, BC.
"What's important for him, for any young player,'' says Hawerchuk, "is having that confidence click in where you feel comfortable with the speed of the game. For rookies the first couple weeks are always tough, playing with the big boys.''
The size issue is, for Mangiapane, a non-issue.
"I've been small my whole life, been facing bigger players my whole life,'' he dismisses, shrugging. "So when I go up against them I don't think 'Geez, that guy is 6-foot-3!', I just think 'I've got to win this puck battle' or 'I've got to take this guy wide.'
"I don't think of it as big or small. I think of it as what I have to do.
"My goal is to make the team, to earn a spot. Dale is a great coach and he's helped me a lot. I owe it all to him.
"It was a little nerve-wracking at first, thinking 'Wow! Dale Hawerchuk likes me and he wants me to play for him.'
"But I also felt a sense of accomplishment, too."
Mangiapane's degree of offensive panache is indisputable. Consecutive seasons over 100 points for the Colts, and 51 goals in only 59 starts last year.
"He has such an ability to take the puck with him,'' marvels Barrie teammate and fellow Flames' prospect, defenceman Rasmus Andersson. "He always gets the bounces. It's true. And I don't mean it like he's just lucky.
"As a defenceman, you might think he's lost the puck, you relax that one second and he's behind you.
"The thing about Mangy, he's strong. And getting stronger all the time. He's at 185-190 (pounds) right now.
"Mangy's ready for pro. He showed that in Penticton last year. I'm sure the transition will be smooth."