Well against my better judgement I'll respond to Tinytim. Scope is a deal between the BACC and BA, relating to the deployment of our aircraft and the use of the BA brand on aircraft of a certain size. The RJ deal is a very, very small part of Scope. An agreement does require the consent of all parties to it, but BACX is not one of those parties. BACX have no more means to veto an internal BA agreement than they have to veto pay agreements between BA and the BACC. If agreement is not reached then the RJs remain in BA, they won't be transferred to BACX and any further debate on the subject is irrelevant.
If agreement is reached between BACC and BA, then the way is open for BA to transfer those aircraft to BACX, and how they crew them is between BA (subject to the terms agreed in Scope) and BACX. If you choose not to play ball with BA at that stage, then more power to you. BA must find a way to crew them to make the transfer work and they'll probably have to do it on your terms, whatever they may be, but at that stage the negotiations will be entirely between BACX and BA.
The key point of this is that these negotiations are not tri-partisan at any stage. Its all very well stamping your feet on this forum about how you will derail the whole process, but it blindly ignores the fact that currently you are not actually in the process. It may be an unpleasant truth, but it is the truth nonetheless. When the BA/ BACC part of the negotiation is concluded, then you get to negotitate the best deal for yourselves.
I have noted your comments about BA treating certain categories of its pilots as second class. For the record, in 'another place' there is unanimous support for the principle that all BACX pilots should be treated equally, regardless of current aircraft type. Furthermore there is an absolute refutal by a member of our negotiating team of the claim that the BACC have stipulated that CX prop pilots must be handled differently from jet pilots. It is stated that the BACCs position is, and always has been, that all CX pilots must be treated equally in any merger/transfer situation. It is BA management alone who are setting the terms for any transfer into mainline.