Your's is a pretty good color-correction (much better than the faded source).

I, too, have played with assorted settings and just cannot get it spot-on. In past, I would resort to a cascade of filtering [in paint program tests] to get it better. (Not happy using that approach, though. Being a minimalist, I always search the core of the process for the problem and a "magic bullet" to kill it with one shot.)

Your recently posted, corrected video segment has the brightness varying within individual shots. How did you capture the original 16mm film (forgive the ignorance -- my quick scan of this sizable thread is confusing as you seem to be working on a number of preservations)? Is it a capture problem? (BTW, do you test & adjust for a non-blown-out/crushed capture?) Will you leave it in that condition? How about the all the per-frame dirt/spots and full-length scratches? (Only asking because color correction should be performed on a stable source.)