Nice screenshots, Lateral-G! I'm glad you are enjoying the product, and that is a perfect area to be flying it! I personally tend to hangout around Duxford, Old Warden, and central England.
Compared with the P-51D, the P-51B/C's, even with the Malcolm hood, were real hot rods, and can be anywhere between 12-18 mph faster than the D, at the same power settings.