Check it again after a couple of hours, you'll be able to turn the screws maybe another 1/8th turn. This almost seems to go on forever so I just wonder when to stop.
I never say that. I usually remove my top hat and monocle, take a little bow and say "Pardon me good sir", but since I can't do that over the Internet, "my bad" is a lot easier to type.
Since there's such a wide rubber gasket, it seems that the caseback is never completely tight. It feels like the screws can never be completely torqued down but I don't want to pinch the gasket too much either. Any insight as to how tight the screws should be?