New anchor design for current

I have change some in my old anchor and like to share it weight less than 500 grams made from marine A4 very effective during big peak current

https://www.youtube.com/watch?v=gXfavQBQPuc

the different in high tide and low tide usually more than 1.5m ,very high speed current it can take you miles from your diving place , if u don't use something to hold you find your self in the next city