The Heff as make the statment that you should join the RNR, RAFVR or TA.
Apart from the extra money that this would give you it will also give you access to the RAF flying club in your area, being non proffit clubs they offer flying at a very inexpensive rate and as a lot of the instructors are ex-forces aircrew the standards are very high.
RAF Flying Clubs' Association (RAFFCA) - Homepage