Hello
First of all thank you for the interesting data. However, I don't quite see your point yet, especially your suggestion that the 10.(N)/JG 26 suffered considerably at 18.12.1939: 10 minus 1 pilot fatality = 9, plus 6 'new' pilots makes 15 pilots on 6.1.1940 when 10.(N)/JG 26 had absorbed the 10.(N)/ZG 26.
I read your data as follows: the pilots of the 10.(N)/ZG 26 were partially sent to the 10.(N)/JG 26 and - perhaps - a few of their Bf109D's too >> the 'Ist' increases from 13 to 16.
The trouble with such strength reports is that it does not specify the movements of pilots and/or aircraft. We only see the quantities
I did a similar exercise in order to trace movements/deliveries/losses of He219's - with the help of known deliveries from flight logs and Heinkel documents, known losses - and I can only say that it is VERY difficult to make perfect fits.
Keep up the good work, these pre born NJ-Staffeln are most interesting !
Marcel Hogenhuis / Venlo