sorry we've been through this old chesnut several times.
If you're not in you can't vote, if you're in and you don't vote then accept it.
I'm in and I voted NO. I thought a majority of the people were going to vote No too, but the BALPA CC did a whirlwind tour and said in no uncertain terms that if it wasn't accepted we could expect far far worse.
it was the 'devil you know' clause that brought in the 5/2 - 5/4. nothing else.