Definitely, i'm missing something or P...P4 don't work.
I verified the buttons conecting to the trigger to test them and they are ok. If I enable some P? buttton in the software, I need to unplug the gun to changes take effect (I think this is normal for those gamepad buttons).
I also assigned to the aux button , the gamepad button 1 (it works).
After plug in the gun again , I go to the panel control->blah,blah... to see if the gamepad buttons are working. If I assigned one P? button to any gamepad button, I see there is always on=> When I push the aux button, the gamepad button 1 light, but also the gamepad button 2 assigned to the P?. When I release the aux button, the GP button 1 is off, but the GP button2 is always on.
If I enabled more P? buttons, happens the same. They don't work and are always ON. Repeat again, the buttons, wires and connections are OK.
About high and distance, it seems it is very, very, distance dependent. A little bit closer and the gun must be recalibrate. A little bit far, the gun miss accuraty.