I dont know about the Med, but the reason they were screamin in the PTO was because the planes they were usin were crap vs the Zero....
I dont think the planes that were bein used in the Med by the Allies were crap...
And as far as i know, there was only one unit that transitioned from -47's to the -38.... All the others transtioned OUT of the -38 and into a new replacement aircraft... Not really typical of the "Best Fighter"...