Now, if I can just come up with some 1 1/4" plate lying around!
I would think this same concept would work with a concrete casting, maybe 4-6" thick with a length of 1" ID PVC or steel pipe in the middle to absorb shock from the 1" rod. It would be a cheap experiment anyway.
One thing I have not seen discussed on this forum is, "How much weight is too much?" What is the point of diminishing returns? With fluid-filled tires, wheel weights, and implements, it would seem there would be a point at which adding more weight would be counterproductive.
