We (us sailors) should perform our own tests. One that is 100% clean of outside interests...just to find the best anchors for each type of bottom. If you think about it, it's not that hard. Many anchor types can be found in most marinas. All we need to do is get a few sailors together and each brings his anchor. We match up the anchors that are rated the same, throw one in the water at the marina and hook a line to a car and test it at different RPMs after getting it set. My marina is about 8-9' deep but also about 200' long channels between the docks. Plenty of room for tests. To do a 90 degree pull, just run the line through a block tied to a piller or a cleat on a finger and back to the car in the parking lot.To make this a complete test, we would need groups to volunteer to do this all over the country so we can have different bottoms. We have soft and hard mud here. It's soft at my marina but don't know how far down before it gets hard.What do you sailors think of this? Can we work together to come up with a test that we know is real for the benifit of all sailors?