Please can somebody post comparison shots or even better a short clip (through the lens) for the 5K+ and 8K for videos/movies? Obviously non-adult shots/clips! 
Preferably a normal comparison and then a comparison with both the 5K+ and the 8K+ set to 200% SS.
You can get free sample clips of 180 degree 4K video here: Stock Footage: Royalty-Free Video Clips - Storyblocks
See also this topic with a cryptic title, so maybe not everybody has seen it: