Matt - that sounds great, looking forward to any improvements. Although the new cloud model has made things a lot easier, they look way better now.
As for clouds not looking real anymore when you change POV - I have tons of reference images of different cloud types at different heights shot from a helicopter/jet for our internal usage. And what I've learned is that real clouds can look quite 'fake' under certain conditions, or just not as pretty as one would expect. I guess they can look as 'wrong' in TG as they can in real life. For a lot of these images, if I were to judge if they were rendered or real I'd say they were rendered and don't look 'good enough'.
With that said, the current voxel caching can make things hard to pin down (50 or 500 millions - where's the truth?) and with all the other parameters it can be a bit of a hit and miss sometimes. It surely would help to be able to render them faster when tweaking settings.