There seems to be two threads on this accident, wider scope at
http://www.pprune.org/accidents-close-calls/595774-spitfire-f-azjs-crash-france-2.html#post9801117
I referred earlier (#10838 on p542) to the later Spitfire's tendency to pitch uncontrollably onto its nose, and have managed to find the reference, an excellent talk entitled
Handling Qualities of WW2 Fighters and delivered to the RAE in 2004 by test pilot Dave Southwood. The relevant passages are quoted in my post #22 on the above thread.