..making the CF-35 into a refuelling hermaphrodite should not be a major mechanical problem.
So if a 4-ship of dual system CF-35s is fragged against a boom/hose capable KC-30, which will be the refuelling system of choice - singletons on the boom or two-by-two on the hoses?
I've heard that the F-35A fuel pipes are identical to the B/C, which negates the better transfer rate capability the boom and gives advantage to the simultaneous refuelling ability of probe-and-drogue.