How to perform Lag Displacement Roll Attack?

[majorfailure]

The "roll away from the defender" part got me confused too - got me thinking to let them pass below your aircraft. I'm still not 100% sure I'm doing the textbook maneuvre, but as long as it works what I do, who cares about the textbook. Basically what you do is using your roll rate to change your planes heading - by pointing it roughly upwards, rolling and leveling out again.