Thanks a lot, chippwalters, a very interesting, informative and well done tutorial - for sure great for many other Vue users, too, who are struggling with those settings ...

However, like you've hinted above - for spectral atmospheres it's a very different approach towards fog/haze - it just works very different compared to standard or volumetric atmos ... and in a spectral atmosphere i've got that line problem before, but at least it's rare.

(And if i get problems like that - and there are always spots in my images, that don't turn out the way i want, or leave some bad artifacts - well there is always a little postwork possible, which i use in just about any image, i do ... if it's to take care of some faulty spots, or to add extra details ... or make a bad fog line disappear ;) ).