Probably shouldn't say this, especially here, but scoring is unrealistic and gives a false sense of flying ability.
Remember, in real combat the score ended with the pilots death. As a result the motivation was quite different.
If you want a realistic scoring system it should add points until your death. It could be something like a listing of your highest number of kills in a row, and then list your current kill streak.
Oh well, something to think about. I don't have to worry about scoring as yet. I'm new here and must have crashed 40 or more times just setting up the stick and figuring out what to do. hehehe.
Ranger Bob