It is more than likely that Mark Sanderson did not begin partaking until AFTER Fred Franz died. This means that he is categorically NOT a member of the "second part" of the "overlapping generation." This is, I believe, the reason why the WT writers came up with the third group of "anointed ones" a little more than a year ago.
Thus, not every anointed person today is included in “this generation” of whom Jesus spoke.- WT, January 15, 2014, p. 31, paragraph 16
Classic cult damage control to explain away Marky-Mark.