Bump.
It was Jimmy's fault, he very abruplty and haphazardly starts the 'E-D-A-E-G' riff, the first time through was complete slop. As the band leader and the one soloing, it was Jimmy's responsibility to let the others know "Okay, I'm finished", as he clearly used to do. Here are just a few clear examples:
@7:00-He lets that final chord ring out and looks back at Bonzo, indicating its time for the riff.
Same here @6:00-
and here, same as above, the feedback is a clear signal to prepare for the riff. @8:25