I can't wait till we can get more control of the weather (On a hope and prayer). I'd love to just sit and practice CAT III's all day at various airports and different start points.

Yep. The fog mostly performs as it does in Real Life™.Consider this - common in Sydney by the way - within fog, the visibility is about 300m, but the fog layer is barely 100m thick. At 100m altitude, the airport is probably still a km to two away, so you won't see it at all. Above the fog layer the ground looks at little blurred, but easy to see. Entering the fog is a now-you-see-it, now-you-don't experience.

I've only ever seen this once as PIC, but it was really creepy. Crossed over the field on the way into the pattern, and it looked totally clear. On finals, things also looked pretty good, and then when I descended below 50m or so, nothing! At least I could still see the grass well enough to land on it, but I couldn't see the hangars 500m further down the field when I stopped in the middle of it.