I am wondering if the inconsistencies on the PDB is because the FAs are not paid until the door is closed so PDB service is before the FAs are getting paid and as far as I am aware none of us tip the FAs. Perhaps their union should be negotiating that FAs be paid when the GA scans the first boarding pass. Serve the PDBs or do not serve them - but be consistent, and yes I know it is a stated benefit of domestic first but I am not sure I would want to work and not be paid, unless I am volunteering my time for a charitable cause.