Don't sweat it. There are some things the company will want enough to not stall negotiations forever.

1. They really want PBS. If they want it badly enough they will have to work for a new contract with provisions for it. It won't come into effect until there is a new contract.

2. Without a contract they will not be in a position to bid on any flying anywhere as their future costs will be uncertain.

There is some leverage when the time comes. Until then we still enjoy respectable wages and work rules compared to our colleagues at other 'Fee per Departure' carriers.