Thanks for the suggestions.
Bases on these, I ended up choosing:
Fins & Things, Porcupine Rim, and Poison Spider as my first choices for each day.
I assume if there are spots for these then the second and third choices are ignored.(?).
I also got put on a waiting list for the Fins & Thing Wednesday night run. If I get on this I might change the Thursday Fins & Things, if allowed.