I fail to see what is stopping the GC from simply saying
"Negotiations have failed, after an exhaustive effort. Contract compliance starts now. Any crew member caught volunteering for G day duty for whatever the reason will be publicly shamed and blackballed."
See how fast the company gets back to the table.
Thats it.
Its simple.
No if's and's or buts. Just send out the statement.
By the way, burnt an extra 1.6 ton on approach yesterday due to my poor handling
.. what did that cost you Swire?