Trying to lighten up my aea challenger 30 spring

I've also reached out to fellow member Ron for some guidance on trying to lighten my trigger pull. If anyone can correct or affirm my understanding of the single stage trigger for the challenger 30 standard, that would be appreciated. As it stands, I've diagramed what I think happens. I'm new to pcp and for that matter guns period.

Unless I'm mistaken, when you cock it, as the sear and the hammer are touching, the hammer will move back/preloading, allowing the sear to come up. This motion up allows the hammer to lodge in the slope of the sear. Simultaneously, because the sear moves up, the trigger blade now with the help from the spring pushing the back, causing the top portion of it to roll back, into that little red corner of the sear from where it was, the blue section of the sear. This effectively keeps the hammer "cocked"

When you pull the trigger, this will rotate the top of the trigger corner that is wedged at the red part of the sear forward, when it goes too far, it'll slide off that red sear contact allowing the sear to drop because of the pressure pushing forward from the hammer spring. This effectively is the action of pulling the trigger, correct?

I plan on adding some lightly polishing the red corner/ledge of the red part of the sear as well as the part of the trigger that touches it. I also plan on getting another spring and making it a smidge lighter than the spring that is there.

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