OA
Thats an interesting suggestion and would probabl;y work if we were not all somewhat imperfect human beings. The problem with it being that in times of conflict the RN and RAF drive off in two different directions, each according to its doctrines. I could cite historic examples if required.
Perhaps a better solution would be for the FAA to man three squadrons for each carrier, with the RAF providing the wartime "surge" if required? This would leave the RN in command of the fighters needed to defend itself with the RAF chipping in for anything beyond fleet defence.