This covers a lot of the questions I had about time lines and consistency in story. Not sure about the 'Hot Dog' angle. Plant has said a few different things about the inspiration, although I think the closest he got to saying it was about Audrey was in response to her assertion it was, saying "It could have been, could have been about a lot of girls'" shrugging. Sorry don't have the reference for that quote. I also have a few issues with the whole 'seeing' Mick Ralphs, which essentially amounted to the time Bad Co was in Dallas (a week) during which Mick jammed with Zep, and Robert made a quip when introducing 'It'll Be Me' along the lines of "It's very appropriate Mick". After which Audrey was left firmly behind in Texas.