I was watching the Anthology the other day and recall George saying that he said Rubber Soul & Revolver could be like Volume 1 and Volume 2.
"Wings IV introduced Jimmy McCulloch, a spunky lead guitarist with grit, able to spur Paul on unlike any previous soloist. His debut track, the magnificent single `Junior's Farm', stands as one of Wings' finest emotional and technical releases."
"Few people on this planet know as much about Jimmy's musical history than you."