Player) Skate Sharpening Hollow equivalents and Shapes, for reference. I made this as I did the results of the survey, thought I should share. Red outlines most common choices for our sub. :
How to Select the Correct Skate Sharpening | Ice Warehouse
How to Choose the Right Hockey Skate Hollow - Pure Hockey
Blade Barber
Anatomy of a Skate Blade Hollow - Eddie's Hockey & Skate
How To Sharpen Hockey Goalie Skates | Complete Guide