A lot of you appear to be missing something important here and you seem to want to blame JPA. If it is true that flying is being halved and I don't know that it is since I have no access to JPA, then this is most significant. Exit levels are high whilst recrutment levels are getting ever lower. Sooner or later there will be a manpower crisis to the point where the nations very security is threatened. At least that is the excuse they will use! The next step will be to remove entirely flying pay when you PVR as a manning tool and I have no doubt that eventually the PVR option will also become unavailable.
A thought for those of you still dithering on any decision to leave, if manpower levels fall sufficiently there are standing powers for the Defence Council to prevent you from leaving and even extending your normal exit points for a couple of years!
