Ed
I agree to your points, but I think Nick actually liked to broaden the issue a bit, or perhaps he just saw/read things a bit wrong. We all noticed that! No big deal.
Also the P-40C was after all a rather rare model with less than 200 built. Thus an interesting aircraft, so I liked it. BTW it seems you as well like to "widen" the present subject, so he is in good company...
(and I like that too!)
The Iceland connection is interesting since the US presence was before they actually entered WW2 themselves.
33PS or FS? Well it depends on the actual date each photo you can provide was taken. According USAAF official sources (quoted by Maurer Maurer) the change over was 15 May 1942. By then the unit had been in Iceland some 9 months.
Your book about "Iceland" (WW 2 period only perhaps?) sounds incredibly interesting. I hope we don't have to wait another 30 years for it to be published? At least I will not be around that long....
Cheers
Stig