As the title states.
The lead/lag video was a good example of fighting with a plane of similar turning abilities as your own. With a poor turner like the La5 in this demo you just can't play the same game with a 109. You'll still use lead and lag with an energy fighter and use displacement turns with a good dogfighter when the situation dictates.
If anyone wants the raw recording to see any of these training videos from different angles just ask.
https://youtu.be/154u9FXZqoU