I haven't heard anyone have problem when raising and lowing the water as long as it's done before the lots (and ports) are built. And I can only imagine how tiring world building must be! Especially with such a finicky and fickle tool. You world builders must have tons of patience. Or maybe it's just stubbornness? I have that, for sure. I would need it if I ever tried to build my own world! :? :lol:
Also, you are more than welcome to use my sims and as I've already said, my lots, too. I really do enjoy playing a lot more when I see all our sims wandering around the world doing our thing. :-)