...so I guess then if you wanted nice, relatively focussed cloud shadows, you would put the sun around 12 NOON and you would see lots of dappled-gray cloud shadows all over your terrain?

That would be exciting to see...

Also- what KIND of clouds are these-in the V6i Pantheon of Clouds?  Sky-Plane clouds, Object clouds- etc (whatever they are called by V6)..and do they ALL behave like this- same cloud shadow effect- or does this only work with certain types of clouds, atmospheres, etc...