I have just forgotten it! But quite a coincidence! Are you thinking of it as a lighter/smaller alternative to 600 (perhaps with a 2X) ?Well, I am not neuro but this can not completely right. He does not have 500mm f/4L IS II, 800mm f/5.6L IS, 200mm f/2L IS, 200-400 f/4L 1.4X.
And - I think - he does not have 8-15, 17TS-E, 24 1.4II.
All true. I notice you left off the 300/2.8L IS II from your list...perhaps you are aware that that lens is high on my list for a future purcahse?