The trigger should be stiff from the second you start pulling it until the break, whereas a stock trigger has a fair amount of take up and slop before you hit the break.
I'm not sure what you mean by "does it sound right"?
I didn't put the light striker spring in mine, I used the 3.5# connector (well polished) and I used the olive NY trigger with the metal coil spring removed.
The above should get you a 5# pull with a DAO type feel and a firm reset.
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