I have 1000 rounds through a P99c AS that I'm considering carrying but about 20% of my shots hit 3" high at 10yd from my tipping the muzzle up just as the trigger breaks. If I concentrate and slow-fire I can overcome this but it returns whenever I fire at 'realistic' speeds. I suspect the sight picture may be my problem. The rear notch is shallow enough to "occlude" part of the front dot when the sight tops are level, like this:
I suspect my brain wants to move the front sight up to align 3 full circles, ruining the shot. Is this a training issue or should I change the sights? Or am I overthinking it?