What if I cancel a reservation at the last minute and switch to another session on that same day? Will I still be charged a late cancel fee?

Yes. Any time you late cancel a reserved session you will be charged a $15 late cancel fee, even if you switch into a different session on the same day.

If you want to avoid any possibility of extra fees, your best bet is to not reserve a session until you know 100% that you will be able to attend (for example, not until you are on your way to REVFIT and know you will be on time!).