Not sure this is exactly correct. My understanding is that the CAL pilot group allowed them into the old CAL union/group. Then, when CAL joined ALPA there is something in the bylaws which allowed any current "member" of CAL's group into ALPA when that occurred.

Semantics perhaps, but worth repeating.

There was a good explanation on the other forum regarding this issue.

Effin Scabs. They won't get such a rosy welcome when paired with LUAL types.