Re: CATS stretch when idle.

@Werusek-2000  Maybe no one figured out how to prevent this in all cases, or the people who could were occupied with game-breaking bugs.  (Think NRaas mods and the like.)  I don't actually know for sure that no mod exists, and you might find one, or a modder willing to look into the issue, on the Mod the Sims site.  You could try the NRaas site as well—at the very least, people there should be able to tell you if there's a working mod somewhere.  I know a lot about mods, but not anywhere near everything.