Notes for next year: Edit tour dates per camp. Those fields are variables; remap each selection to a value. Ensure that "I'm only touring the other camp" is set to Eisner and CLC.
Then update the campaign IDs in the calculated fields below. The connector is set to skip campaign member creation when the value "N/A" is returned, so doing this any other way would be even more annoying.
if(EisnerTour=="CLC"){"N/A"}else{"701UG00000DIVqfYAH"};
if(CraneLakeTour=="Eisner"){"N/A"}else{"701UG00000DIRYYYA5"};