Hey Stuart, thank you for the video and sharing your knowledge !
I really loved what you explained in the last part of video.
If you get a song to mix that you don’t have tracked or produced, , in a “only-mixer” job, do you start also without any limiting ? Will you gain stage all the tracks down before mixing to do so ? Or do you stay in a “no rules” rule 
Thank you !
Romain
PS : I did two seminars with Tchad Blake - he told us you did one with him some years ago, one of the first at La Fabrique. You got the same vibe and it’s a pleasure to see you working !