The RAF do not have a single spin recovery technique. The spin recovery actions for each type are in the Flight Manual (POH) for that type and have been worked out by the good folks at Boscombe Down. Obviously some of these actions will be the same for 2 different aircraft (but compare actions in the Bulldog Flt Manual to those in, say, the Phantom). If you go for a technique not in the POH then you are entering uncharted territory and run the risk of making things worse.