Actually Charlie I did not put any note on the 1st stage of the trigger pull since I am not so sure. I believe the 1st stage is where the trigger pin is touching the intermediate lever. When I disassemble the trigger assembly I noticed that the intermediate lever's small curves on the bottom part perfectly aligns to the trigger pin and the fat trigger pin. If there is no purpose as to why they need to put those curves on the intermediate lever then its just another waste of factory time for such a small piece of metal (unless all these parts are press-punched).
No harm done, I did not even think for a single moment that you are picking on me. Hehehe. As I have said I am quite fascinated by the way an airgun works and I'd like to know more about it. Since I have an open G-1 in front of me and I personally own it and is responsible for it I can then observe, analyze, and make an inductive reasoning as to how it works.
I decided to post it so other newbies can see how the parts inside the trigger assembly are inter-connected. My only omission on the posted image was the 2nd stage screw adjustment because I'm having a hard time taking the measurements since I'm just using some plain old ruler and a small cheap caliper.
Perhaps it would be very nice if someone can enlighten us as to how all these parts really works in the actual design.