Sounds like they are revising instructions on the fly as they work things out. I would have thought they did all that prior to selling these on the market, this hitch was supposed to have been in design for several years.
BTW - when I called Radauto to inquire about this hitch, the lady told me they drop ship all of Andersen hitches direct from Andersen. She told me that nobody online would actually stock these. If you look at the eBay sellers, they list the shipping point as Idaho which is where Andersen is located. Not exactly sure why they sell that way but it sure must be a profit maker for the sellers. No inventory or shipping costs to worry about!