Regarding
Tumult in the Clouds, it is been a while since I read it, but it did not read like a very accurate piece of history, some of it actually feels more than iffy to me (but I'd need to read the whole thing again to be specific). Personally I would only consider it worth a purchase if you are either a real enthusiast, a real collector, find it in a bargain bin or finally when book space and cash aren't an issue.
I am not 100% sure on this one, but I also believe that Goodson writes about half of the Jagdwaffe as augering into the see...this may be an exaggeration, but some pilots seem to have a knack for seeing Messerschmitts in death dives.
Please spare me the heavy high speeds controls debate!