Well Wingandprayer, BALPA have just helped a Captain win a tribunal against the company with regard to it's basing policy. One tribunal does not set a precedent but if they consistently lose tribunals they'll change their policy.....
If you've been passed over for a base launch a tribunal as you'll probably win it. Since you're a non member best of luck, if you were a BALPA member you'd get lot's of help from the CC.
Pays yer money (or not in your case) and takes your choice....