The work that is being done here blows my mind, even though the math goes too much over my head 
Thanks so much for the matchbox version from @nick - I started playing around with it.
Right now I’m using the other frame from the take of the woman in the bar - I’ve also uploaded it to the dropbox repository.
So this is how the image looks under default arri lut and this is what I use for kind of the best case scenario target, which I know is not really obtainable, but something to learn from.
I zoomed to this areas
these areas are interesting, because there are changes between colors which are quite sudden, but soft/gradient at the same time
so they are less “forgiving”
so this is the default arri lut
this is tahn
this is exp
this is simple
and this is the academy fix just for fun
all of the matchbox settings are default
I think all of them have their “problems”, but tahn is probably most pleasing, but still too dark and saturated
the shadows of the balls are especially “trippy” as the shadow should be darker, but it’s the other way around - I know it’s debatable, even the default arri doesn’t really do it like that and maybe even perceptually on the spot it would look darker…who knows…
and the other problems are the darker outlines - when the blue neon color blends into another one - green or brownish
tweaking the other parameters made the blue color brighter, which helps, but makes more visible outlines around the edges as a negative side effect
anyway, great to see the progress, I’ll take a look at the dctl version from @jedsmith next!
cheers!