...."I don't think that TD should base the FM of a spit on a few photos of in-flight spitfire..."
They don't, the images were provided as a response to this thread to indicate typical Spitfire Elevator position in a trimmed 1G cruise state. There are plenty of other images around of Spits in the Luft showing this elevator deflection.
No Rollnloop .. I should be so lucky
. The Spitfire pilot is a friend who provided me with the images from a photoshoot.