Why are you using the mid-1942 Merlin 61 powered Spitfire F.Mk IX (300 built) for this?
The Merlin 66 powered Spitfire LF.Mk VIII is much closer to the Merlin 66 powered Spitfire LF.Mk IXs being used in those raids. The same is true of the Spitfire Mk XVI, though it has the wrong gun package and clipped wings weren't common yet.