From my personal experience working for Sportchek, you had to be certified to use the skate sharpen machine, unless there was no alternative.
I had used the Calgary Royals (AJHL) machine for 2-3 years while my dad worked for them before working at Sportchek, and they perfered that I didn't sharpen due to not having the certificate.
It may not be the best in the city, but there's a good chance someone has actually taken a course, not sure how indepth, to use the machine.
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