FBW transition from high alpha/low speed

[bkthunder]

As I was doing a few high alpha passes at minimum speed I noticed that the FBW tires to commit suicide sometimes.

 

Flying at ~100 Kts, with stick 3/4 of the way back and keeping altitude with the engine.

The Mirage flies ok until I engage AB and quickly release pressure on the stick, at which point the FBW commands a violent pitch down of the elevons, resulting in the nose dropping fast towards the ground and it's impossible not to crash if you're low.

 

If I repeat the same maneuver and release the stick pressure gently, the effect is minimised, but still present.

 

If I repeat the manoeuvre with the stick fully back, and in any case, if I transition less gently to high AoA, by pulling hard and adding thrust, the FBW enters an oscillatory motion that amplifies and eventually requires me to interrupt the maneuver and recover.