We should arrive at Mars in late April.
Think about this: A couple of volunteers are riding in GCNR/REs at the points which will pass through zero gee during the turnover.
Their worlds will literally turn upside down.
Admittedly, they're only at a relatively low gravity gradient, but it should still be fun and interesting if you can stand a really slow speed loop-the-loop!
We have them there as another safety precaution, in case the gears which are turning this massive structure get stuck. We could disengage the electrical operation, and proceed with a reaction drive to get back into alignment if necessary.
In the meantime, they're getting one heckuva show!