Davison, you are correct about the stingers on the tank. I am pointing at the stinger on a replacement tail piece I bought to replace the one I bodged through carelessness; the original S version has no stingers.
As for Martin's admonition about securing the tank, I put new rubbers in but cannot get the tank pins to go in far enough to get the clips installed. I live 5 miles from pavement up a rocky canyon road so lots of bouncing and bumping before I get to blacktop, not to mention the eventual return trip. Guess I better figure out how to get them darn clips installed.
Volador, thanks for the heads-up, did not occur to me that some bright boy rigged this up like that. My side covers have the pins as normal, so I'll see about removing those aftermarket stingers tomorrow. Thanks all, stay healthy out there.