Didn't Dom claim at one point that he actually HEARD the pt. 2 studio track? Or...if I recall a little better...he talked to someone who SAID they heard the track (probably erroneously), which then sent him off on a sanctimonious rant that it therefore had to exist?...
As I mentioned in the other thread on this topic, Dom stated in his 2005 MAKING OF SMiLE book that a completed version of "Surf's Up" from Jan. '67 resides in the vaults unreleased. I would take the quote regarding a part two with the same grain of salt.