Seriously,
I think the squads are rotating between Knights-Rooks only. Last time I looked the squads with the largest numbers were all in the Bishops. Maybe a couple of those can move to Knits from Bish and the numbers will be balanced once and for all..
After some lot of weeks and months of hardship, some very good squadrons offered their help to come to Rooks. Most of them were from Knits, and I can imagine their empty space in Knitland is quite big.
I recall some Bish squads rotating to Rooks a few months back, but they all stayed like a week or two and went right back to Bishops..
Maybe we can do sort of 'squad registration' for MA before each new tour? Maybe squads can decide and apply to a certain country each new tour, and info will be given at the HTC page. Other squads can see the list of which squad is where, and maybe it can help those squads shift around to alternate countries to balance overall power??