Interesting too is the managed path the RAF have created. Take it from me, it is a work of fiction. Min req for a SAR captain will be 500 hrs on type (ask bristows, they'll tell you). They are hiring NOW to fill their SAR slots, putting guys on the oil and gas run, to get the hours up. They are recruiting like crazy. Any mil SAR guy will need to be out the RAF/RN and able to work for Bristows THIS year or they have well and truly missed the boat. The managed path is a myth to stop people pvr'ing.
Check with Bristows. The RAF guys will almost certainly not see a SAR seat unless they are prepared to work for years as a low paid co.
Don't take my word for it, check for yourself. I did.