I skimmed the video (anchor testing loses me,...), and I loved it. Then I subscribed to his Utube and got a quick history of the boat. What a wonderful family story! Watch it. I especially love that the dad was a wood romantic, which has driven the son to non-wood. I have the exact same thing going on with my son.
Back to the anchor 'test': In the end, he chose his anchor on the basis of aesthetics. He's a metal craftsmen and was leery of structural deficiencies - and didn't like the looks, in the best holding anchor(a manson maybe?).
He has an eye for design, which he's quite good at in his medium - metal. That anchor performed well beyond the others in his test but he settled on a slightly lesser hook.
In the end, the anchor is secondary to the, anchor-er.
He also pointed out the poor performance of phony anchors. He borrowed a CQR clone that wouldn't even make a good kellet.
And had similar results with another clone.
Thanks, Gene.