Just received your 13lb. Being very curious how you got your design to set in hard packed sand (where others fail), I had to try it right away in our yard. It did indeed set, well done! It seems that you have perfected the chisel point, a little different than both our Rocna and Manson.
I have to admit I’m a bit of an anchor buff, and have about 30 anchors in our boat house, and I love to photograph them under water to see how they perform. We have been sailing on Georgian Bay since ’65 (part of Lake Huron, one of the Great Lakes), where the sea bed is often a combination of weed, rock, gravel, mud, and sometimes sand (and old logs too left over from the days of logging the area).
You should think about a simple knock down design with perhaps one shank bolt and welded tabs the shank foot slides into, it would be great for those who want to stow it in pieces and need quicker deployment.
Again, great job, thanks!