On the Dover mission I got something like 4800, ...I think that's about tops for the demo.
On Tiger Hunt I get about 2800 and that's about tops on that mission unless they give more points for finishing faster.
Maximum altitude for the Spitfire so far is about 30,000 ft. and the Mustang I got up to 39,000 or so.
Bringing down the Mustang from that height in a power dive I noticed that the air speed meter stops registering at 600 mph, ...it just goes blank.
I'm using the Ace Edge flightstick and noticed that the Spitfire has a bit of a dead zone, not bad but noticeable. However, when compared to the Mustang I can tell that the P 51 is much tighter with only a small amount dead zone.
With the Mustang when trying to draw a bead on a FW 190 I would generate PIOs until I turned down the elevator and aileron sensitivity by about a third and viola! ...almost no more PIO.