After every update I start a battery of tests.
Su-27 AI Excellent vs F-15 AI Excellent
R-27ER vs AIM-120C
Firing at max range, Firing at No Escape zone, etc.
Start to watch the tacview (at least five different times of the confrontation).
After that I take control of both Fighters and start to try the ideal distance for every situation.
Before the last update the R-27ER always went to the first chaff. Now it is not.
If the lua file didn't change, then they changed the chaff effectiveness.
Same test with different version and the effect was complete different.
Now my wingman can help me and it's not only a target.