Was that the tour where Mountain opened for Black Sabbath (IIRC)? Sometime around, I saw this fabulous twin bill when they came through Houston. And I distinctly remember hearing Nantucket Sleighride in their songs.I saw Mountain in 1971, right before "Nantucket Sleighride" was released. He played the Jr. through the Sunn amps. Three stacks. Cab, head, and cab on top of the head. His guitar solo was spectacular, but Felix Pappalardi's bass solo was awesome. I can't recall if he had the V or if I have just seen so many pictures of him with it.