I just had a review of the film.
Interesting fight.
You had him at first... so close. He actually overshot you, but you didn't capitalise on it. Just as things start to even out in the rolling scissors again, you bailed and dove. You can't do that. Once you get into a rolling scissors like that, you must stick with it at all costs. The guy that give up first loses. You are trying to fly the slowest at that point, so if you try and cut and run, you just can't get away fast enough and you'll get hit. If you are going to cut and run, you need to do it just as or before you overshoot, and at a moment that you are in a spot where he can't see you. As you cross in the scissors and you see you are losing, a good time is just after you cross and are beneath his plane, roll out into a 0 G dive towards home and hope you get enough of a head start.
When he merged on you with more E, you did the right thing, but you should have been full flaps and on the stall horn. After that, you have to ride the edge of the stall horn and hang it out for all your worth. The guy that can fly it slowest, wins.
Now, once you had him starting to overshoot, you want to be VERY careful. Don't try to get a shot too early, because if you do, you pull lead pursuit or relax your pull in the scissors. If you pull lead or relax your pull in the scissors, you are closing the distance.... you are headed for an overshoot. This is exactly what happened, Sancho overshoots, but you don't capitalise, so he works hard and forces you to overshoot, putting him back in the driver's seat. Once you are on his tail, fly to a point behind his aircraft. If he is crossing your line of sight, sure take the shot, but be careful not to relax the stick in your turn, or if you are almost saddled, don't pull lead on him. You want to fly into lag pursuit so you can get firmly saddled and wait for a really nice shot.
Nice flying, both of you.
