guncrasher,
You do know that the Spitfire Mk XVI is a Spitfire LF.Mk IXe, right? They have the same performance, same armament, same fuel endurance. When speaking of the combat the Spitfire Mk XVI saw, in terms of AH, you really have to include the combat the Spitfire LF.Mk IXe saw as well.
In fact, the Spitfire Mk XVI in AH is actually a Spitfire LF.Mk IXe as its full throttle height is that of a Merlin 66, not the Merlin 266 which is a couple of thousand feet higher.