In air combat you would not be able to tell anyway, so it should stay like it is. During the war the LW guys (for example) would repor having seen a Spitfire that can suddenly keep pace with their planes. LW Command would then label the plane with their own nomenclature. They didn't have a link to the Supermarine factory, so they had no idea what the actual labl was.
The reverse is also true of LW types. In the early stages of the war the Brit's could have easily asked boys living around LW airfields what they knew of local aircraft, but somehow intelligence overlooked that. So, this is why several types and variants were mis-labelled during the war.
It's really not a problem. Spits die really easily, but you have to hit them.
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