Unfortunately, with cloud/terrain blending turned to max, the lines continue to show--though they may be a bit more subdued. But still quite noticeable and distracting (cloud shadows are turned off). The more disruptive thing, however, are the left-right eye convergence issues in VR, which are bad enough that I can't really use the overcast settings. If you look at the first picture pair below (taken at the same instant) and can manage to cross your eyes to see the 3D picture, you'll see that there is a kind of mirage effect that is produced in the terrain due to the images in the left and right eye seeing two different versions of the haze and ridge line (compare the panel's well converged appearance with the view out the window that refuses to converge). When in motion, it is quite dizzying. In the second picture pair over Boston, it might be even easier to see, even without crossing your eyes, that the level of haze in one eye is distinctly different than the other along the center haze line, which again in motion, is really too distracting and uncomfortable to use (remember that these picture pairs are taken at the same instant). With that said, flying in fairer weather clouds at at distance doesn't have this problem; but it is definitely an issue in VR with hazy/foggy weather effects. With the stock overcast/fog effects I don't see these sorts of artifacts in VR.