DD,
I am in a similar position to you, left the Airforce last year, was an A2 on the Hawk and QFI on the Tornado, have 2500 hrs instructing (4500TT, 1000 light ac), now flying the Airbus longhaul. Despite all this experience, the Campaign Against Aviation were more concerned about recent Single Engine Piston experience and then would not give be a by on the 2 day instructor seminar.
For me, re-new PPL-down to CAA Gatwick for signature, 2 day seminar (5hr drive), some dual FI stuff then test with CAA examiner and back to Gatwick for final signature. Not easy due to the fact I live in Fife and spend 6 months away on the Funbus!
In summary the CAA aren't exactly encouraging ex-fast jet mil instructors to put something back into general aviation in the UK.
so best of luck and don't forget the seminar
Sandy Wings
ps might just gaff it and do some AEF flying 4 miles away!