Considering how different is the "secondary waltz" from the early GH sessions to the finally released on ćkill to get Crimson", night and day, I wonder how different is the early version of Speedway.
I also remember Alan telling that MFN was very different during the early rehearsals before they went to Montserrat, that it was a kind of Rolling Stones style, and when cutting the record, MK changed it totally to what we know.