All I can say is WOW!!! I can't imagine hoisting 40+ lbs of anchor every time I move. I have a 2072 and my main anchor weighs 8 lbs. It will hold in about any condition you encounter including the current in the Ohio river. The only place it lacks is in rocky bottoms. We don't have much of that here mainly muck and sand. Its all in the amout of line you play out. More = better hold. Once I get the front where I want I have a 10 triflut\ke river anchor I use to hold the back. A small fluke style anchor made to dig into the bottom will hold a pretty latge boat!
Now for the homemades from back in the day....... window weights, concrete blocks, chisel plow tines, and SS pump shaft with SS rod welded to it to help dig!!!