A couple of hints.

1 If you look away from your model and can not find it when you look back pull up elevtor and leave it looping so it becomes identifiable.

2 Watch other people fly and learn what they do when followed. When you fly against that person follow them then anticipate their manouvre and pul through the line of their streamer. Many people are VERY predictable. If you find someone who pulls negative G manouvres or can out turn your model FIND ANOTHER TARGET!