It is what it is until it isn't
I realize it's blasphemy to a true Purple fan, but I liked this version of the band even more.
https://www.youtube.com/watch?v=B8YU-FcmGA0
Really it was a totally different band only with Deep Purples drummer and organ player.
Coverdale, Tommy Bolin, and Glenn Hughes freakin' rocked!!!
I was so upset that I couldn't go to California Jam that year. Caught the Purple tour that year in Houston at the Summit instead. Nazareth opened for them and it's still my all time favorite concert.