First I want to say a big 'Thank You!' to RSC for this fabulous upgrade. And a free one at that! That's above and beyond, as far as I'm concerned, since Trainsimulator 2012 is much more than just a patch. I will be buying DLC items in return.
Having said that, one area where I'd like more info, concerning tweaking things:
With TSX on, I do get an 'enhanced' bluish sillouhette for distant mountains, but detail for closer terrain is more fuzzy or obscured, as if by a blue haze.
Attached is a view on my Cimarron & Pacific route. One is taken with RW2, the other with RW3.
I wish there were some way to tweak settings to get that enhanced distant terrarin view, but not lose the closer detail.

Even if it