Those are good answers. Fuel was near zero and my DT was long since gone. However, the point regarding the diff b/w an anecdote and a test stands - and I'm well familiar with the diff.
I may try a true test with my squaddies. We'll do comparable loadouts and drag. Alas, even this will not be a true test, though, since even flicking my rudder slightly will slow me down - but we can get close. We could probably both go on AP though a heading variation would mess it up.
I note, also, that I had auto trim on but the auto stall limiter OFF. I'm not sure what effect any of this would've had anyway. My only guess is that I might've been climbing slightly. Yes, I should've fought him, despite being just about out of fuel - macht nicht, either way. I'm still kind of miffed that I missed that first overshoot - especially since I just learned how to halfpipe/barrel roll the D9. Had I had a decent high yoyo, I probably could've got inside his flat turn.
Any detailed f/b on D9 evasive tactics, btw, would be very appreciated. I very strongly get the impression, number 1, that I should not be attempting to furball in this plane. Still, the temptation is great. BnZ is a tough life, but someone's got to do it.
The only reason I asked this question in the first place was to see if there were ever occurrences of people with planes that were non-comforming. I understand that this would require a coding difference and would thus be "inside". The developers do fly and train - yes?