I don't know about the "not hurrying around" theory. True, towards the end of the week you can just about do laps. Lines on Thursday, and even Wednesday are frequently about 10 cars long.
BUT (and this is a very big BUT IMHO) the reason(s) you hurry to run Saturday afternoon and Sunday morning are, 1., you want to set a record before someone else in your class does, and 2., the Weather. I.e., a beautiful meet can go to H.. and get rained out/blown out in a matter of hours, so I always figure, "If I see sunshine, I get in line." Cause you never know. More than a few meets only lasted until Tuesday.
And after what it co$t$ to get to the starting line I figure, why waste it?
So plan to get there Thursday just in case you break down on the way so you can find parts on a weekday. If you arrive without problems, check in (you do have a room don't you?), clean up the trailer/car/suitcase, and/or sit by the pool.
That's about it. If you want, give me your e-mail and I'll send you my check list.
All the best,
Jim