How do rolling admissions work?

So UMich received my application, tests, and transcript all on December 25.

I’m OOS and was wondering if the pseudo-rolling admissions process for UMich means I have a chance to hear earlier, or will I need to wait until April no matter what?

I’ve got a 1470 SAT, 32 ACT, rank 15/192, and a 3.9 GPA. I think my essays were solid too.

Should I bother checking my app status again before April?

You will hear from Michigan somewhere between mid-February and late April. You should receive an email with status changes (if any).