I don’t need no stinkin’ tailwheel endorsement because of this:
§61.3(i)(2) The training and endorsement required by paragraph (i)(1) of this section is not required if the person logged pilot-in-command time in a tailwheel airplane before April 15, 1991.
However, because I have not logged any pilot-in-command time in a tailwheel airplane in more than 50 years, I would need more refresher time in a tailwheel airplane than what I have logged in one.