I have done more testing with a F and Geco, Sellier & Bellot and reloaded ammunition, 115, 124 and 147 grains.
The trigger is way better than it was right out of the box. I only had one failure to lock slide with empty magazine.
I still have the cases hitting me in the head 5 times for 300 rounds fired.
The shooter next booth told me it was flying just above my head, I tried to have him take pictures but I prefered to let him try the Caracal than my EOS.
Once more verified, an expert's camera does not make a skilled photographer especially indoors.