Hi,
I have made up a 300mm x 300mm piece of 12mm plyboard which I have beveled the edges off and painted with several layers of clear floor sealer to keep the water out,
It will get used next week on Fraser Island to stop the jockey wheel sinking in the sand when I camp at the top of the beach with the MySwag mob that's getting ready to hit FI.
Works well in soft wet soil also, makes it easier to hook up also as it is easier to move to line up the pin.
Ray