I have on CD a partial recording of a KSAN special, featuring a snippet of a interview with Bill Graham (broadcast date n/k).
Either side of this interview are two ABB songs: first is Liz Reed (which is unidentified, but is a SBD recording) and, after the BG interview and clearly identified by the DJ as from Fillmore West January 29th 1971, You Don’t Love Me.
YDLM is just short of 16 mins long and segues directly into Whipping Post (which fades out after 5 secs or so).
Given the clear difference in the above given setlist, I would suggest the original partial tape of Phillybob’s is probably authentic – now where is the rest of this recording…!!!