Just looking at the latest pic of the stage on the home page here (iorr) and noticed that Jagger appears to be in a different position to the image of him on the big screen??.
I thought it was absolute live or is there a delay - which seems apparent here?..

Dog

Oddly, the live action happens slightly after the video.

At the video-screen, you can see Micks right hand moving to his mouth, just as it is when you look at him. In Frankfurt, when I was frontrow, I noticed that live-action and video are tking exactly the same time.

yes, there's a distinct slight delay, which is more apparent if you're right up front -
but if you're right up front you're not watching the screens much anyway, so ...