The Zappa, Does Humor Belong in Music (though real spiff) isn't all that rare. F.Z's Them or Us also has a version of Whipping Post on it, but Dweezil only solos on the live one. Make a Jazz Noise Here, Roxy and Elsewhere, Ahead of Their Time and Bongo Fury also have lots of valuable live twisted Zappa goodness on them.
If any one can point me towards Larry Coryell/ Fairyland, Good God, L.S. Bearforce, Dave Pike/Solomao, Wolf/Satutation Point, A.F.T., or Egberto Gismonti/ Fantasia, PLEASE RESPOND!
PS, near the end of their run, Spooky Tooth made a weak record or two w/ Mike Patto (from Patto) in their band. The first three records Patto put out are at present criminally under recognized. Ollie Halsall's guitar work alone establishes these records as some of the best rock stuff ever put out.