Training enough crews to man 8 ac (1.5 crews per ac is prob about right) in US would be very expensive. Training the RAF RJ crews cost far more than expected. Also is there capacity in the US.
To have WSOp in place we need to recruit them now to be ready for 2016.
I suspect there are enough pilots holding the system and we could quickly increase the through put if required.
There is no RAF WSO training system and I suspect we do not enough to man the new MPA fleet.