I've remade my old video on picking Medecos with this animation. I hope you'll find it a lot easier to see compared to the old video with the core under a magnifying glass.
Looking for some decent locks?
American Padlocks: https://amzn.to/2LURssA
Abus Disk Detainer Padlock (88/40): https://amzn.to/3gaylZs
Mul-T-Lock Junior (House Format): https://amzn.to/3bVmmvp
Mul-T-Lock MT5+ Padlock: https://amzn.to/3cZ0KQk
Looking for the best Disk Detainer pick to pick the widest range of locks?
Consider my Silver Bullet: https://lockfall.com/product/silver-bullet-3d-printed/
or DIY Kit: https://lockfall.com/product/silver-bullet-diy/