See some more anchor stuff here:
https://www.sailmagazine.com/author/jonathan-neeves
https://www.sailmagazine.com/cruising/know-how-expanding-your-anchoring-repertoire
https://www.petersmith.net.nz/boat-anchors/
https://www.petersmith.net.nz/boat-anchors/independent-performance-testing.php
https://www.practical-sailor.com/sails-rigging-deckgear/an-inquiry-into-anchor-angles
https://www.practical-sailor.com/issues/37_50/features/Anchoring-in-Squishy-Bottoms_11619-1.html
Some videos
https://www.youtube.com/watch?v=jeyuswDFKKo&t=1450s
https://www.youtube.com/watch?v=HngP1Z0LYoo&t=46s
https://www.youtube.com/watch?v=-pzEeRAlYVI&t=351s
https://www.youtube.com/watch?v=JUoRDGFovhk&t=53s
https://www.youtube.com/watch?v=Edy08IlcIbs&t=8s
https://www.youtube.com/watch?v=RpGAWGva1rI
