I don't know, one would assume you cant just walk out the airforce and demand a pilots licence you have to do the training/tests like everybody else. RAF pilots are great at what they do however its different to civilian aviation, im not going to say easier because the is nothing easy about a harrier but the radiowork/etc is less complicated. Ive heard my father and other pilots joking about ex-military pilots who think their ace because they have X hours of flight time but it counts for almost nothing in the real world and their still basically novices in many aspects.
They get quite a bit and can complete ratings etc when they leave but the biggest problem for an ex fast jet pilot is not many civvy Airlines will employ them. A lot find it hard to get flying jobs once leaving the forces.
One of my mates left a while back he was a Tornado pilot and could not get a job flying, all the Airlines were not interested. He,s now a butcher.??