Has anyone used the No-Mar with the standard wheel lock blocks to change Gold Wing or VTX tires? I noticed that No-Mar sells their "Posi-Clamps" (http://www.nomar-secure.com/category_s/3.htm) for "Gold Wing and heavy cruisers." There are some Goldwings and at least one VTX among the group that will probably be using my new changer, and I'd like to know if we need to keep a set of the posi-clamps on hand for these applications.