Yes, we are sure about the Feb 1, 1970 Mac set. This 3rd show was a benefit added at the last minute to defray legal costs for The Dead's bust the previous night (thus, its not on the poster for the run). The Flock couldn't play it as they had a booking that day, but Fleetwood Mac volunteered to stick around and play a third show on Feb 1st. That is why the setlist is different than the previous two nights. Alan