Ghost, thanks for the reminder of "Mind Transplant", which I knew about but have never heard. Will check into that. Your reference to Mouzon reminded me of Larry Coryell, "Introducing the Eleventh House", with Mouzon (and Randy Brecker, as I recall). Tinny sound but interesting music.
I agree with you on Bolin with Deep Purple. Their styles just don't seem to mesh (for that matter I've never been a huge fan of DP with Steve Morse, though I'm a big fan of the original DP lineup and Steve Morse with the Dregs).
As for Zephyr, I prefer "Sunset Ride" to "Sail On" and Bolin isn't even on that album.
One reason I like Barnstorm is the backing musicians, Joe Lala (Blues Image, Stills' Manassas, and a host of others), Kenny Passerelli and Joe Vitale, who sort of became the house band at Caribou studio for a while. Showed up on albums with Dan Fogelberg, Michael Stanley, Fools Gold, and probably a bunch I can't think of.
Back to the theme of the OP, I'm presently listening to, and "The Who Sell Out", extended version. What a wonderful album.