Makes minor mistakes under pressure and will fall for advanced tactics. Master Pilot - Can beat me about 1 out of 4 times. No major recurring mistakes but doesn't have the psychology of dueling down. Top Ace - Can beat be about half the time or slightly less. A real threat.
Mistakes are rare, very minor, and have to be forced.
This is all my own opinion. I generally knock down people who run all the time and give the benefit of the doubt to people who fight back.