I managed to knock up just under 100hrs while on the Premier Air Squadron, graduating a couple of years ago. This summer, I got my arse (and wallet) into gear to get my PPL(A) sorted.
The new CAA/JAA regulations allow all military flying to count, hour for hour (+5%), towards a JAR-FCL.
Despite this, it still took me a further 15hrs at Oxford's PFT...
About 3 hours were spent converting to the T67, learning checks/upper-air work/civie circuits; 2 hours on Nav Revision; a further 2 hours on a Cross-Country check ride, 3 hours solo doing the Qualifying Cross Country, and 2 hours on the Skills test. Between all that was the odd solo flight, and a couple of wx-aborted cross country attempts (the arse being that I could have completed both of them with my PIFG).
You see, the JAR requirements are for you to have flown a xc flight over a certain distance, landing at two separate airfields before returning home. In the UAS, we were lucky to get a single land-away, let alone a double - hence I had to pay for the lot in civie street.
Now, if you already have a PPL, the UAS is NOT a good place for hours building: Very little of the course is as Captain. I had 87hrs dual, and just 11.5 hours P1.