wuzak
Captain
Isnt the difference in a word develop and deploy. The P-40 obviously didn't change or force the deployment of a more advanced Bf 109 marque. However the LW had many places to send aircraft and was producing/developing several types so the question is where do you send your "E"s and "F"s?
Yes, that's what I was going to say.
The P-40E may have sped up the deployment of the Bf 109F to the Med, but not the model's development.