BS
I think you've missed the nature of discussion (maybe LJ did too IDK). We are not discussing who does ASW in capability terms (now or in the future), but who would have to operate the acoustics in a future MMA/MPA. Some of us contend that the RAF is close to losing its entire ASW expertise forever. Thus if/when an MPA capability is restored (fingers crossed hey), the aircraft would be operated either by, or with, the RN because they still have plenty of acoustics operators (airborne, surface or subsurface). The RAF soon won't have any (or at least none with anything approaching currency).
And by soon, I mean when seedcorn ends.