I still have the monopod somewhere under the house. The shooting sticks I have used, one set I wore out, have rubber caps over one end of what look like arrow shafts, the other end bearing a target point that one can jam into the earth to stabilize the setup. Between the rubber caps at the top end of the sticks is a rubber link which allows one to open the legs as far as needed, and serves as a rest for the forend of the stock. These worked very well for me in prairie dog shooting.
Good luck with the monopod. That thing drove me nuts. Here lately I am using big old rubber bands to hold a laser range finder on top of the monopod, and that works pretty good.