I saw a Mountain concert at the UGA coliseum in school year 70/71. The Nantucket Long Boat Ride was a 20 minute boogie about a whale with a harpoon towing a boat load of hunters. The band put on a great concert. It did seem like the drummer was bouncing his drum sticks off of his drums and over his shoulders about every 60 seconds. And yet another drum stick would automatically appear. The band was high energy. One of the best concerts ever.
I saw them at the USC (South Carolina) coliseum during the same time period.
Probably the same tour.
The drummer sticks where flying like 20 feet above his (Corky Laing?) head.
He had a rack of new sticks set up right next to his drum set. One would fly up in the air, then he would just grab a new one and keep playing.
I saw Mountain in concert in the early 70s. They were so loud my ears were ringing for days afterward.