Great After Action Report. When you can, download Teamspeak 3 -- a free communication utility. You can assign one of your joystick or throttle buttons for "Push to Talk" (or any keyboard key -- but it's easier to scream for help with two 109's on your tail using a joystick button! LOL). Many of us on the ATAG server use TS3 and it's great to hook up and coordinate in flight. Plus we're a friendly bunch.
Good for you figuring out the mixture control is reversed in the Spit vs the Hurricanes. It's an error in the sim and hopefully the Spitfire's mixture control will be fixed in a future patch.