Domestos, the FAAA can agree to anything they like. no matter what they "agree" to it doesnt compel or require the company to do it.
The LH FAAA position has always been why Limit transfers to a particular number.
SH seem to be fixated on a number in the hope that somehow it will bind the company. I dont think that this is the case but i am sure if SH FAAA wanted 1000 or 100 a year the LH FAAA would agree to it
the challenge for SH FAAA is that no LH crew want to go to SH
Hence if you make it a "swap" provision then SH crew will not be able to come over....
Good luck is all i can say