Douglas,
IMO, it's better to make a tool which consists of a kind of holder or brace for the plastic cone-shaped piece holding the pin and a threaded screw for pushing out the pin. The tool doesn't need to be fancy -- my machinist did this for me. The same tool can be used for re-installation. If you hammer on the pin, it is possible to break the cone-shaped piece and/or other parts. Note also that there are chrome collars on the visible ends of the pin.
FWIW, the very good article by Gernold on hardtop restoration does talk about driving out the pin, but he also says that it's sometimes necessary to drill it out.
Chris Earnest