User blog comment:Affectos/HARP Canon Modification/@comment-5782071-20161217013646/@comment-5782071-20161217020207

And I'd include the video, but with my awful my first phone was I had to record it in three short parts due to limited memory, and my sniffling gets really distracting. Plus, I can't figure out how to edit them together in Movie Maker because it's beeing a twat -_-. I'll try to get it so you guys can watch it yourselves, but for now the best description is on the canon wiki's page for Grand Designs.