and IF bubbers said he rolled inverted and avoided a collision, I believe him. Every fighter pilot I've known said, "no matter what, keep 'him'' insight and you maintain the advantage.
Ask fighter pilots these questions -
1. If you roll inverted can you maintain visual ID with a guy below your belly?
2. Would you roll a non-aerobatic airplane and then pull towards the ground at night OR would you just save the time spent rolling and just pull back the same amount you would towards the ground?
Dog fighting rule 1 - "lose sight, lose fight" doesn't apply to avoiding midairs. If you can establish a trajectory away from the conflicting traffic it doesn't matter if you lose sight. The conflicting traffic is not going to pull 5-9 G's and lock you up with a 'winder or radar missile.