Very nice finds, especially the last one - have you listened to that in-house Geffen promo tape of AFD yet? if so listen carefully, the mixes of the tracks may be differant - those cassette promos can be absolutely gold, there was this famous pre-Ten, Pearl Jam one that was full of alternate versions of Jeremy, Alive, Black etc.
Hey there - didn't want you to think that I left you hanging. So far I have listened from Jungle to Brownstone and no discernible differences. Will let you know when I am done with the rest.