When the New York Islanders selected then 21-year-old defenseman Sebastian Aho in the 5th round of the 2017 NHL Draft, it was viewed by some as a smart, under the radar decision. Habs Eyes on the Prize had written about Aho as someone the Montreal Canadiens should look to sign or bring in on a tryout, citing his strong play in the SHL (10 goals and 30 points in 50 games before being drafted).
The big benefit to selecting Aho as an overager is that he was further along in his development than an 18-year-old player would be.