Morning Gents ...
All good stuff Dora-9. Interestingly I understand the BBMF use the rear seat (but still flown dual) to train pilots new to tail wheel aircraft in getting used to coping with a long nose ready for the Spitfire ... weaving the nose while taxiing.
I certainly don't think you'd want to do any spinning with a well aft CoG if anyone was mad enough to solo from the rear seat
Dora-9 ... Do you still have the RAF 700 for your airframe ?