My interpretation of the passage was that, upon racking the slide, you’d have a trigger pull weight between the two.
Your interpretation is simultaneously correct. If you insert a magazine on a closed Glock and pull the trigger nothing will happen. You need to rack it once to get the first round into the chamber. When you fire that racked round, you get the intermediate trigger pull- but also any other round you fire has the exact same pull.
I think the way it was explained above is bringing in other types of triggers as a comparison (DA/SA triggers), and if you don’t know anything about them, you just end up more lost trying to read it out.
Your interpretation is simultaneously correct. If you insert a magazine on a closed Glock and pull the trigger nothing will happen. You need to rack it once to get the first round into the chamber. When you fire that racked round, you get the intermediate trigger pull- but also any other round you fire has the exact same pull.
I think the way it was explained above is bringing in other types of triggers as a comparison (DA/SA triggers), and if you don’t know anything about them, you just end up more lost trying to read it out.