BA don't want the secondees at MAN so it doesn't matter if an approach has been made to BACC. BALPA have told all the MAN secondees that BA want them back in London.
The approach to BALPA regarding GB at MAN was made before the supplementary bid closed. The secondees are now committed to their new bids, as I said in a previous post only a handful (6 to be exact) wanted to stay with the RJ when it moves north. The results will be announced later this week but it looks like most have achieved their EDI bid.
The remainder (about 20) will return to London with a successful Aspirational Bid or they'll be directed with a Forced Bid. Flying for GB at MAN is simply not an option.
p.s. I heard that 65 BACX pilots had resigned since end of November.